{"title":"Tier1","description":"\u003cp\u003eBrowse our full Tier1 range. Every order ships free across the UK, with free 30-day returns as standard.\u003c\/p\u003e","products":[{"product_id":"tier1-clearwater-30-pool-filter-cartridge-10-1-2-x-6-2-pack-trilobal-media-high-flow-core","title":"Tier1 Clearwater 30 Pool Filter Cartridge 10-1\/2\" x 6\" 2-Pack — Trilobal Media, High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement Waterway Clearwater 30 Pool Filter (2pk) is a direct-fit cartridge designed to restore crystal-clear circulation by trapping fine debris while preserving steady flow in compatible pool systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool pump is running but the water looks cloudy or the old cartridge tears during cleaning, swapping in a proven replacement cartridge is the fastest route back to clearer water. This two-pack replacement fits a wide range of popular models (Watkins, Filbur, Unicel, Pleatco and others), measures 10-1\/2\" x 6\", and uses advanced trilobal fiber media to capture more dirt without choking off water flow. It’s independently tested to NSF 50 standards for performance and durability, and the internal high-flow core helps protect your pump and heater by maintaining consistent circulation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich pool systems will this cartridge work with?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 Clearwater 30 cartridge is built as a compatible replacement for many OEM part numbers, making it a practical swap for common filter housings. Before purchase, confirm the 10-1\/2\" x 6\" dimensions and check your existing part number against the list below.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Watkins 31489, Filbur FC-3915 and multiple Unicel models (C-6330, C-6430, C-6430RA).\u003c\/li\u003e\n  \u003cli\u003eFits Pleatco PWK30, PWK30-M, PWK30-4, and SD series cartridges such as SD-00328 and SD-00704.\u003c\/li\u003e\n  \u003cli\u003eAlso cross-references part numbers 71825, 73178, 73250, P\/N0969601, PDC510-AFS, and CCP389.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal dirt-lock media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eTrilobal fibers are shaped to present more surface area and edges than round fibers, so they intercept and hold more fine particles while still permitting strong water flow. This design reduces how often you need to backwash or replace cartridges and helps maintain pump efficiency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCaptures up to 40% more debris versus standard round-fiber cartridges.\u003c\/li\u003e\n  \u003cli\u003eEffectively traps hair, leaves, and fine particulate matter.\u003c\/li\u003e\n  \u003cli\u003eMinimizes clogging so circulation stays steady between cleanings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill installing this cartridge affect pump or heater performance?\u003c\/h3\u003e\n\u003cp\u003eTier1 engineered the cartridge with an internal high-flow core to avoid restricting water movement. That stable flow reduces stress on pumps and prevents heat exchange or heater shutdown issues that can occur with overly restrictive filters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core preserves consistent circulation and pressure.\u003c\/li\u003e\n  \u003cli\u003eMaintains pump efficiency to avoid cavitation or overload.\u003c\/li\u003e\n  \u003cli\u003eReduces risk of heater flow-related faults compared to low-flow replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat quality assurances and dimensions should I know?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge has been independently tested to NSF 50 performance protocols, confirming filtration effectiveness and material durability. Its physical size—10-1\/2\" tall by 6\" diameter—is crafted to match the housings listed in the compatibility set, ensuring a snug, leak-free fit when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 10-1\/2\" x 6\" for secure, leak-resistant installation.\u003c\/li\u003e\n  \u003cli\u003eNSF 50-tested for performance and material longevity.\u003c\/li\u003e\n  \u003cli\u003eSold as a convenient 2-pack to replace both filter elements or keep a spare on hand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners and service technicians who need an affordable, reliable replacement cartridge that fits a broad list of OEM models. It’s ideal for backyard pools, hot tubs, and equipment suites that require a 10-1\/2\" x 6\" cartridge and want improved debris capture without sacrificing pump or heater performance. Choose this two-pack when you want a tested, high-flow, easy-to-install option to restore filtration clarity quickly.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I confirm this cartridge fits my filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Measure your existing cartridge (10-1\/2\" x 6\") and compare your part number to the compatibility list before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace based on water usage and condition; typically every 1–2 seasons or sooner if fibers tear or flow decreases markedly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56798766858580,"sku":"B07BQ4GVVM","price":94.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-clearwater-30.jpg?v=1786727178"},{"product_id":"tier1-jacuzzi-6540-723-replacement-spa-filter-cartridge-2-pack-10-3-4-high-flow-trilobal-media","title":"Tier1 Jacuzzi 6540-723 Replacement Spa Filter Cartridge 2-Pack — 10-3\/4\" High-Flow Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Jacuzzi Spa 6540-723 Filter (2pk) is a pair of compatible spa cartridges engineered to restore filtration performance in Jacuzzi and equivalent spa systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis two-pack of Tier1 replacement cartridges is designed as a direct-fit alternative to Jacuzzi 6540-723 and several OEM equivalents. Built to the dimensions and flow characteristics required by many hot tub systems, these cartridges use trilobal fiber media and a high-flow internal core to trap debris while maintaining steady water circulation. Independently tested to NSF 50 protocols, they offer a balance of capture efficiency and durability so you can return your spa to clear, comfortable water.\u003c\/p\u003e\n\n\u003ch3\u003eWill this cartridge fit my Jacuzzi or equivalent spa?\u003c\/h3\u003e\n\u003cp\u003eYes — the Tier1 replacement is sized and shaped to match the common Jacuzzi 6540-723 profile and multiple cross-reference part numbers. Measure your current cartridge against the listed dimensions to confirm fit before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact cartridge size: 10-3\/4\" height x 5-3\/16\" diameter\u003c\/li\u003e\n  \u003cli\u003eCompatible with Jacuzzi 6540-723 and cross-referenced models\u003c\/li\u003e\n  \u003cli\u003eAlso fits Pleatco PJW40SC-F2M, Filbur FC-2811, Unicel 5CH-402, and similar\u003c\/li\u003e\n  \u003cli\u003eSold as a convenient 2-pack for simultaneous replacement of two filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal dirt-lock media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eThe trilobal fiber design presents a larger surface area and sharper capture points than round fibers, catching a wider range of particles without overly restricting flow. That means finer debris is held in the cartridge while water continues circulating efficiently through pumps and heaters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fibers capture up to 40% more debris than standard round fibers\u003c\/li\u003e\n  \u003cli\u003eEffective against hair, leaves, silt, and fine particulates\u003c\/li\u003e\n  \u003cli\u003eMedia structure balances capture with sustained water flow\u003c\/li\u003e\n  \u003cli\u003eHelps reduce frequency of intensive cleaning cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these filters affect pump pressure or heater performance?\u003c\/h3\u003e\n\u003cp\u003eNo — Tier1 cartridges include an internal high-flow core engineered to maintain steady circulation. The core prevents restrictive collapse and helps protect pump and heater operation by keeping head pressure within expected ranges for compatible systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core ensures consistent water circulation\u003c\/li\u003e\n  \u003cli\u003eDesigned to avoid excessive backpressure on pumps\u003c\/li\u003e\n  \u003cli\u003eMaintains heater-friendly flow for reliable temperature control\u003c\/li\u003e\n  \u003cli\u003eDurable construction resists deformation under normal usage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat testing and durability can I expect?\u003c\/h3\u003e\n\u003cp\u003eTier1 cartridges are independently tested to NSF 50 protocols for performance and durability parameters relevant to pool and spa filtration. Built materials and pleat structure are chosen to withstand repeated wet\/dry cycles typical in residential spa use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 standards\u003c\/li\u003e\n  \u003cli\u003eRobust pleat spacing resists clogging and collapse\u003c\/li\u003e\n  \u003cli\u003eMaterials selected for repeated cleaning and handling\u003c\/li\u003e\n  \u003cli\u003eTwo-cartridge pack reduces downtime—replace both at once\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tier1 Replacement for Jacuzzi Spa 6540-723 Filter (2pk) is for spa owners who need a reliable, economical replacement for worn or clogged cartridges that maintain pump and heater performance. It's ideal for people who prefer compatible aftermarket filters that meet common OEM dimensions and have independent performance testing, whether you maintain a private spa, manage a rental property, or service multiple hot tubs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these filters a direct replacement for Jacuzzi 6540-723?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. These Tier1 cartridges match the dimensions and fit pattern of Jacuzzi 6540-723 and listed cross-reference models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these spa cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace based on usage and water quality; many owners swap every 3–12 months or when cleaning no longer restores flow.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56799256838484,"sku":"B07GSC2F64","price":107.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-view-cartridge.jpg?v=1786730102"},{"product_id":"tier1-sundance-spa-filter-cartridge-replacement-2-pack-8-x-4-5-8-in-high-flow-trilobal-media","title":"Tier1 Sundance Spa Filter Cartridge Replacement 2-Pack — 8 x 4-5\/8 in, High-Flow Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Sundance Spa Filter Cartridge (2pk) is a direct-fit 8\" x 4-5\/8\" spa cartridge that uses trilobal dirt-lock media to capture more debris while maintaining steady water flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen your Sundance spa needs a reliable filter swap, these Tier1 replacement cartridges deliver a balance of improved particle capture, consistent circulation, and straightforward installation. Built to match common OEM dimensions and tested to NSF 50 standards, the two-pack is designed for homeowners who want cleaner water and dependable pump performance without complex maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eWill this cartridge fit my Sundance spa and other common models?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges are manufactured to match the 8\" x 4-5\/8\" specification used by popular OEM parts. They are compatible with equivalents such as Pleatco PSANT20P3, Unicel 4CH-925, Filbur FC-0126, and SD-01036, making them a universal choice for many systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact dimensions: 8 inches height by 4-5\/8 inches diameter for a reliable seal.\u003c\/li\u003e\n  \u003cli\u003eCross-compatible with listed OEM part numbers for easier replacement shopping.\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack so you can replace both filters or keep a spare on hand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal dirt-lock media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eThe trilobal fiber construction increases surface area and creates micro-channels that trap finer particles than round fibers. That means more hair, leaves, and sediment are captured while keeping flow resistance low, so your pump and heater can operate efficiently.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigher capture efficiency—up to 40% more debris versus standard round fibers.\u003c\/li\u003e\n  \u003cli\u003eMaintains water flow to prevent added strain on circulation equipment.\u003c\/li\u003e\n  \u003cli\u003eEffective for both coarse debris and fine particulate matter commonly found in spas.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes this filter affect pump performance or heater operation?\u003c\/h3\u003e\n\u003cp\u003eNo—these cartridges include a high-flow internal core designed to provide steady circulation without restricting pressure. That engineered core reduces the risk of undue strain that can occur when filters are undersized or overly dense, helping to protect pump longevity and heater function.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow core supports consistent water movement through the system.\u003c\/li\u003e\n  \u003cli\u003eBalanced media density prevents pressure spikes that can impact equipment.\u003c\/li\u003e\n  \u003cli\u003eRegular replacement keeps system efficiency optimal and reduces labor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these filters tested and durable?\u003c\/h3\u003e\n\u003cp\u003eTier1 cartridges are independently tested to NSF 50 protocols for performance and durability, giving you a verifiable baseline for quality. Durable construction and stable media integrity mean you can expect consistent filtration between routine cleanings and replacements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNSF 50 testing confirms performance benchmarks for spa filtration.\u003c\/li\u003e\n  \u003cli\u003eRobust pleat construction resists collapse and helps maintain flow.\u003c\/li\u003e\n  \u003cli\u003eDurable end caps and core reduce tear and premature failure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Homeowners and service technicians who maintain Sundance and compatible spas and want a cost-effective, performance-focused filter replacement. Choose this 2-pack if you value improved debris capture from trilobal media, cross-compatibility with common OEM part numbers, and an engineered core that protects pumps and heaters. If your priority is straightforward installation, consistent water clarity, and an NSF-tested option, this Tier1 replacement cartridge is a practical upgrade.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these Tier1 spa cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace every 3 months under normal use or sooner if the cartridge shows heavy debris or reduced flow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these cartridges compatible with Pleatco and Unicel models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They replace Pleatco PSANT20P3, Unicel 4CH-925, Filbur FC-0126, and SD-01036 equivalents.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56799285018964,"sku":"B07HCX2YFX","price":85.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging.jpg?v=1786730553"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-pentair-plbs50-2-pack-high-flow-trilobal-media","title":"Tier1 Pool Filter Cartridge Replacement for Pentair PLBS50 — 2-Pack High-Flow, Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Pentair PLBS50 is a two-pack of high-flow pool filter cartridges engineered to trap more debris and maintain steady water circulation in compatible hot tubs and small pool systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Tier1 cartridges are designed as direct replacements for Pentair PLBS50 and many equivalent part numbers, offering a reliable, ready-to-install option when it's time to refresh your filtration. Built with a multilobed fiber media and a reinforced core, the cartridges balance fine-particle capture with unrestricted flow so your pump and heater can run efficiently. They fit a broad range of manufacturers' systems and arrive as a convenient two-pack for staged or simultaneous replacements.\u003c\/p\u003e\n\n\u003ch3\u003eWill this cartridge fit my existing Pentair PLBS50 or equivalent filter housing?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the Tier1 cartridge matches the critical size and connection features required by PLBS50-style filter housings. Confirm compatibility by checking overall dimensions and listed cross-reference numbers against your unit. If your system lists any of the compatible model numbers below, these cartridges are intended to drop in without modification.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDimensions: 10-1\/8\" height × 5-5\/16\" diameter for correct seating and seal\u003c\/li\u003e\n  \u003cli\u003eCross-references: Leisure Bay, Pleatco PLBS50, Filbur FC-2970, Unicel C-5345\/C-5345AM, and others\u003c\/li\u003e\n  \u003cli\u003eStandard endcaps and core to align with common PLBS50 housings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal media improve filtration compared with standard cartridges?\u003c\/h3\u003e\n\n\u003cp\u003eThe cartridges use trilobal (three-lobed) synthetic fibers that present more surface area and sharper edges to snag particles than round fibers. That structure increases particle capture efficiency while maintaining porosity so water continues to flow freely. The result is clearer water between cleanings and fewer clogs that strain the pump.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHigher dirt-holding capacity versus traditional round fibers\u003c\/li\u003e\n  \u003cli\u003eEffective at trapping hair, leaves, sand and fine debris\u003c\/li\u003e\n  \u003cli\u003eDesigned to reduce frequency of deep cleanings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes this Tier1 cartridge affect pump or heater performance?\u003c\/h3\u003e\n\n\u003cp\u003eThese replacement cartridges include an engineered high-flow internal core that supports steady circulation with minimal pressure rise. By allowing consistent flow at recommended maintenance intervals, they help prevent undue stress on pumps and heaters that can occur with overly restrictive filters. Regular replacement or cleaning ensures optimal system efficiency.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReinforced core preserves flow even as media loads with debris\u003c\/li\u003e\n  \u003cli\u003eDesigned to avoid pressure spikes that compromise equipment\u003c\/li\u003e\n  \u003cli\u003eMaintains proper turnover rates when paired with routine care\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance practices maximize this cartridge's life and performance?\u003c\/h3\u003e\n\n\u003cp\u003eClean the cartridge on a schedule based on usage and local environment — more frequent for busy seasons or debris-prone settings. Rinse with a hose, use a cartridge cleaner periodically, and replace when pleats show damage or cannot be fully restored. Storing spare cartridges dry and away from direct sunlight extends shelf life until you need them.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRinse weekly or as needed; deep-clean monthly with a cartridge cleaner\u003c\/li\u003e\n  \u003cli\u003eReplace when pleats split, core warps, or flow remains poor after cleaning\u003c\/li\u003e\n  \u003cli\u003eKeep backups dry and shaded until installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tier1 Replacement for Pentair PLBS50 (2-pack) is aimed at pool and spa owners, service technicians, and property managers who need a dependable, cost-effective cartridge that fits PLBS50-style housings. It’s a practical choice for anyone seeking improved dirt capture without sacrificing circulation — suitable for seasonal maintenance, equipment upgrades, or routine part replacement in residential and light commercial systems.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which models does this Tier1 cartridge replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It replaces Pentair PLBS50-style cartridges and cross-references like Pleatco PLBS50, Filbur FC-2970, Unicel C-5345\/C-5345AM, Leisure Bay, and similar part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse weekly and deep-clean monthly if used frequently; replace when pleats are damaged or flow doesn't recover after cleaning.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56799329812820,"sku":"B07GSDPHXC","price":95.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-two-pack.jpg?v=1786731326"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-hayward-c500-19-5-8-x-7-high-flow-trilobal-media","title":"Tier1 Pool Filter Cartridge Replacement for Hayward C500 — 19-5\/8\" x 7\" High-Flow Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Hayward C500 is a high-flow, 19-5\/8\" x 7\" pool filter cartridge engineered with trilobal media to capture more debris while maintaining steady water circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool pump struggles with cloudy water or the original cartridge is worn, this Tier1 replacement is built to restore filtration performance in systems that accept Hayward C500 and equivalent cartridges. Designed to match the key dimensions and pressure characteristics of common OEM parts, it drops into place and works with a variety of make\/model listings so you don’t need a custom filter housing or adapter.\u003c\/p\u003e\n\n\u003ch3\u003eWhich systems will this cartridge fit?\u003c\/h3\u003e\n\u003cp\u003eThis Tier1 cartridge is made to be dimensionally compatible with Hayward Star Clear C500 and many comparable aftermarket and OEM part numbers, providing a direct swap in most compatible canister housings. Confirming the 19-5\/8\" length and 7\" diameter is the fastest way to ensure fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Hayward C500\/Star Clear and Hayward CX500-RE models\u003c\/li\u003e\n  \u003cli\u003eInterchangeable with Filbur FC-1240, Pleatco PA50, Unicel C-7656 and others\u003c\/li\u003e\n  \u003cli\u003eMatches common catalog numbers such as R173409, PLF50A, PPF50-4\u003c\/li\u003e\n  \u003cli\u003eIdeal when your original cartridge measures approximately 19-5\/8\" by 7\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses trilobal fibers rather than standard round filaments to boost mechanical capture of particles: that geometry increases surface area and creates more edges to trap debris without drastically increasing pressure. The result is clearer water with longer cleaning intervals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal dirt-lock media captures up to 40% more debris than round fibers\u003c\/li\u003e\n  \u003cli\u003eEffective on leaves, hair, sand and fine particulate matter\u003c\/li\u003e\n  \u003cli\u003eMaintains higher flow rates for consistent circulation\u003c\/li\u003e\n  \u003cli\u003eReduces frequency of cartridge replacement and manual cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge affect pump or heater performance?\u003c\/h3\u003e\n\u003cp\u003eTier1 engineered the internal core for high flow so circulation stays consistent without creating excessive backpressure that can stress pumps or hinder heater operation. Properly installed, it preserves normal system dynamics while delivering reliable filtration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInternal high-flow core supports steady water movement\u003c\/li\u003e\n  \u003cli\u003eDesigned to avoid undue restriction or pressure spikes\u003c\/li\u003e\n  \u003cli\u003eProtects pump efficiency by minimizing flow loss over time\u003c\/li\u003e\n  \u003cli\u003eTested to NSF 50 protocols for predictable durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I maintain and replace this filter cartridge?\u003c\/h3\u003e\n\u003cp\u003eRegular rinsing and periodic deep cleaning extend life and performance; replace the cartridge when pleats show permanent staining or damage. Follow manufacturer guidance for cleaning agents and avoid harsh scrubbing that can damage the media.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse with a garden hose after each heavy debris load\u003c\/li\u003e\n  \u003cli\u003eUse a cartridge cleaner periodically for deep soil removal\u003c\/li\u003e\n  \u003cli\u003eInspect pleats and endcaps; replace if deformed or torn\u003c\/li\u003e\n  \u003cli\u003eExpect service life to vary with pool conditions and maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners and maintenance professionals seeking a reliable, affordable replacement for worn or obsolete Hayward C500-style cartridges will find this Tier1 unit a practical option. It suits residential pools, seasonal users, and anyone who needs a drop-in cartridge compatible with multiple OEM and aftermarket part numbers, offering improved debris capture without sacrificing flow or stressing pumps.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this cartridge a direct replacement for Hayward C500?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it matches the 19-5\/8\" x 7\" dimensions and fits Hayward C500 and many equivalent part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace the cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse after heavy debris loads, deep clean periodically, and replace when pleats are permanently stained or damaged.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56799333318996,"sku":"B00FW0T9VE","price":120.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-filter-cartridge.jpg?v=1786731390"},{"product_id":"tier1-jacuzzi-j300-j400-replacement-spa-filter-4-pack-15-5-6-75in-trilobal-high-flow","title":"Tier1 Jacuzzi J300 J400 Replacement Spa Filter 4-Pack — 15.5×6.75in Trilobal High-Flow","description":"\u003cstrong\u003eTier1 Replacement for Jacuzzi J300 \u0026amp; J400 Spa Filter (4pk) is a direct-fit, NSF-tested cartridge designed to restore clear water and steady circulation in compatible Jacuzzi and universal spa systems.\u003c\/strong\u003e\n\n\u003cp\u003eWhen your spa’s filter is clogged or worn, water clarity, heater efficiency, and pump performance fall off quickly. These Tier1 cartridges are built to match common Jacuzzi and aftermarket filter references so you can swap them in without modifying the housing. Each cartridge combines a high-flow internal core with trilobal filter media to trap finer debris while maintaining consistent circulation.\u003c\/p\u003e\n\n\u003ch3\u003eWill these Tier1 cartridges physically fit my J300 or J400 spa?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 cartridges measure 15-1\/2\" long by 6-3\/4\" wide and are engineered to match the dimensions of popular replacement references used in J300 and J400 systems. They are made to align with original filter housing and seals to prevent leaks or poor seating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact dimensions: 15-1\/2\" x 6-3\/4\" for reliable seat and sealing.\u003c\/li\u003e\n  \u003cli\u003eCross-compatible with Pleatco PJW60TL-OT-F2S and PJW60TL models.\u003c\/li\u003e\n  \u003cli\u003eAlso fits Filbur FC-2715, Unicel 6CH-961 and SD-00641 references.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the filter media improve water clarity compared to standard cartridges?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges use trilobal fibers that present a greater surface area versus conventional round fibers, which captures more fine particles and organic matter. The result is clearer water and fewer contaminants making their way back into the spa between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal dirt-lock media traps up to 40% more debris than round fibers.\u003c\/li\u003e\n  \u003cli\u003eCaptures hair, skin oils, leaves, and fine particulates effectively.\u003c\/li\u003e\n  \u003cli\u003eMaintains flow to reduce strain on pumps and heaters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these cartridges durable and safe for regular spa use?\u003c\/h3\u003e\n\u003cp\u003eTier1 filters are independently tested for performance and longevity under NSF protocols, which evaluates filtration effectiveness and material durability. They’re designed to tolerate normal chemical exposure typical in spa maintenance when used and cleaned according to manufacturer guidance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 standards for durability and performance.\u003c\/li\u003e\n  \u003cli\u003eRobust construction reduces tearing and collapse during use.\u003c\/li\u003e\n  \u003cli\u003eWashable cartridge body extends service life between replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will these filters affect pump and heater performance?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge includes an engineered high-flow core to preserve steady water circulation. That helps the pump operate without added strain and avoids common issues like reduced heater flow or pressure drops that can occur with restrictive filters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInternal high-flow core maintains consistent circulation and pressure.\u003c\/li\u003e\n  \u003cli\u003eReduces risk of pump overwork compared with clogged\/old media.\u003c\/li\u003e\n  \u003cli\u003eDesigned to allow adequate heater flow for efficient temperature control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This 4-pack is aimed at spa owners and service professionals who need a cost-effective, reliable replacement for Jacuzzi J300 and J400 filtration cartridges or equivalent aftermarket models. Choose this set if you want a direct-fit spare, improved fine-particle capture, NSF-tested performance, and a high-flow design to protect pumps and heaters during regular spa use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which Jacuzzi models are these filters compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit Jacuzzi J300 and J400 systems and match Pleatco, Filbur, and Unicel reference numbers listed for direct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these spa cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace when visibly clogged or every 3–6 months depending on usage and water care; clean regularly to extend life.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56801546371412,"sku":"B07BQFS1QW","price":244.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-jacuzzi-j300-j400-filter.jpg?v=1786743794"},{"product_id":"tier1-pool-filter-cartridge-for-pentair-plbs50-10-1-8-x-5-5-16-replacement-trilobal-fiber-high-flow-core","title":"Tier1 Pool Filter Cartridge for Pentair PLBS50 — 10-1\/8\" x 5-5\/16\" Replacement, Trilobal Fiber \u0026 High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Pentair PLBS50 is a drop-in replacement pool filter cartridge built to fit Pentair\/Leisure Bay-style housings while improving debris capture and sustaining steady water flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool or spa uses cartridges listed under Pentair PLBS50, Leisure Bay 817-0014, Pleatco PLBS50, Filbur FC-2970, or Unicel C-5345 series, this Tier1 cartridge is designed as a reliable spare. It matches common dimensions for a seamless install and leverages a high-performance trilobal fiber media for finer particle retention without choking off circulation. Independently evaluated against NSF 50-related performance protocols, it aims to deliver consistent filtration life and predictable pressure behavior.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this cartridge fit my existing Pentair or Leisure Bay system?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge is manufactured to the standard 10-1\/8\" x 5-5\/16\" size that fits many Pentair, Leisure Bay, and compatible aftermarket housings. The endcaps and pleat spacing are engineered for a leak-free seat so you can reinstall it without adapters in most systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact dimensions: 10-1\/8\" (length) x 5-5\/16\" (diameter)\u003c\/li\u003e\n  \u003cli\u003eCompatible with listings: Leisure Bay 817-0014, R173584, Pleatco PLBS50, Filbur FC-2970, Unicel C-5345\/C-5345AM\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct replacement — no special tools required\u003c\/li\u003e\n  \u003cli\u003eSeal-friendly endcaps to reduce bypass and leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the trilobal Dirt-Lock media better than standard fibers?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses trilobal-shaped fibers rather than conventional round fibers. The irregular cross-section creates more surface area and pockets to trap debris, improving capture of fine particles and hair while keeping water moving through the pleats.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUp to 40% more debris capture versus standard round fibers\u003c\/li\u003e\n  \u003cli\u003eImproved retention of fine sand, silt, and hair\u003c\/li\u003e\n  \u003cli\u003ePleat design that balances filtration depth with flow\u003c\/li\u003e\n  \u003cli\u003eMedia engineered to shed trapped dirt during rinsing for easier cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge affect pump performance or heater operation?\u003c\/h3\u003e\n\u003cp\u003eThis design includes a reinforced internal high-flow core to maintain steady circulation and reduce the risk of excessive pressure drop. That helps protect pump workload and avoids common flow restrictions that can impact downstream equipment like heaters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core for consistent water movement\u003c\/li\u003e\n  \u003cli\u003eOptimized pleat spacing to limit pressure spikes\u003c\/li\u003e\n  \u003cli\u003eCompatibility reduces risk of improper seating that causes low flow\u003c\/li\u003e\n  \u003cli\u003eEngineered to balance filtration efficiency with hydraulic performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the cartridge tested for durability and performance?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 replacement has been independently evaluated to meet NSF-style testing for pool and spa filtration. Those tests assess factors such as structural endurance and effective particle removal under typical operating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested to NSF-related performance protocols for reliability\u003c\/li\u003e\n  \u003cli\u003eDurable construction for repeated cleaning cycles\u003c\/li\u003e\n  \u003cli\u003eStable pleat integrity to extend usable life\u003c\/li\u003e\n  \u003cli\u003eManufactured to consistent quality tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Pool and spa owners who need a dependable, ready-fit cartridge for Pentair, Leisure Bay, Pleatco, Filbur or Unicel compatible systems. Choose this Tier1 replacement if you want improved fine-particle capture without compromising flow, prefer a direct-fit spare that avoids adapters, and value a cartridge designed to withstand routine cleaning and seasonal use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this Tier1 cartridge a direct replacement for Pentair PLBS50?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it matches the PLBS50 sizing and fits listed compatible models without adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace the cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse the cartridge every 1–2 weeks and replace it when pleats show permanent staining or damage, typically annually depending on use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56805267439956,"sku":"B00FW0YOFA","price":55.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-pentair-plbs50-replacement.jpg?v=1786801032"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-hayward-c1200-2-pack-120-sq-ft-trilobal","title":"Tier1 Pool Filter Cartridge Replacement for Hayward C1200 — 2-Pack, 120 sq ft Trilobal","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Hayward C1200 Pool Filter Cartridge (2pk) provides two 120 sq ft trilobal-media cartridges designed to fit Hayward C1200-style housings and improve debris capture with reinforced pleats for longer service life.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Tier1 replacement cartridges are built to be compatible with a wide range of Hayward-style filter systems and popular OEM cross-references. Each cartridge measures 23-5\/16\" x 8-15\/16\" and delivers 120 square feet of filter area, making this two-pack convenient for alternating use or keeping a spare on hand. The media and construction are engineered to combine improved dirt-holding capacity with easier rinsing so you spend less time on maintenance and more time enjoying the pool.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge improve filtering compared to a standard round-fiber element?\u003c\/h3\u003e\n\n\u003cp\u003eThe Tier1 cartridge uses advanced trilobal media that creates a larger effective surface area than traditional round fibers, letting it trap a wider range of particle sizes while keeping flow rates high. Reinforced flat-bonded pleats resist collapse and tearing under pressure for steadier performance over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fibers increase debris capture without sacrificing flow.\u003c\/li\u003e\n  \u003cli\u003eFlat-bonded pleats reduce channeling and extend life.\u003c\/li\u003e\n  \u003cli\u003eRated 120 sq ft of media per cartridge for robust dirt capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these cartridges fit my Hayward C1200 or equivalent filter housing?\u003c\/h3\u003e\n\n\u003cp\u003eYes—these Tier1 cartridges are sized and shaped to replace Hayward C1200 and many cross-reference models from Filbur, Pleatco, Unicel and others. The dimensions and endcap design match common C1200 replacements for straightforward installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Hayward C1200, Star-Clear Plus C1200\/CX1200RE.\u003c\/li\u003e\n  \u003cli\u003eCross-reference: Filbur FC-1293, Pleatco PA120, Unicel C-8412\/C-1200.\u003c\/li\u003e\n  \u003cli\u003eAlso fits Clearwater II 125, Waterway Pro Clean PCCF-125 and similar housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I clean and maintain these cartridges to maximize lifespan?\u003c\/h3\u003e\n\n\u003cp\u003eMaintenance is simple—rinse the cartridges with fresh water after use and inspect pleats for damage. With routine rinsing and seasonal deep cleaning when needed, many users report up to three months of useful service per cartridge depending on pool conditions and usage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse thoroughly with a hose after each heavy debris load.\u003c\/li\u003e\n  \u003cli\u003ePerform a chemical soak or deep clean seasonally for best results.\u003c\/li\u003e\n  \u003cli\u003eRotate the two included cartridges to keep filtration consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the practical benefits of buying the two-pack?\u003c\/h3\u003e\n\n\u003cp\u003eBuying two cartridges gives you an immediate spare for quick swaps during the season and the ability to alternate filters so each one lasts longer. It’s a value-driven option for pool owners who prefer to maintain clean water with fewer interruptions and lower per-filter cost than single OEM replacements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo cartridges (2-pack) provide season-long coverage for many owners.\u003c\/li\u003e\n  \u003cli\u003eAlternate use reduces wear and extends overall filter life.\u003c\/li\u003e\n  \u003cli\u003eTypically more cost-effective than buying single OEM elements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners and service professionals who need a reliable, budget-conscious replacement for Hayward C1200-style cartridges. Ideal if you want improved debris capture, durable pleat construction, and the convenience of a two-pack so you can swap or keep a spare on hand without searching for an exact OEM part number.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these cartridges identical to Hayward OEM C1200?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are aftermarket replacements sized to match Hayward C1200 and compatible cross-references, offering comparable fit and filtration performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace each cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: With regular rinsing and depending on pool use, expect about three months per cartridge; rotating two cartridges extends interval.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56806089097556,"sku":"B07BQ4GZR4","price":222.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-replacement-c1200.jpg?v=1786813029"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-hayward-c1100-2-pack-trilobal-high-flow","title":"Tier1 Pool Filter Cartridge Replacement for Hayward C1100 - 2-Pack Trilobal High-Flow","description":"\u003cp\u003e\u003cstrong\u003eTier1's 2-pack replacement cartridge fits Hayward C1100-style filters and uses trilobal fiber media to trap more debris while preserving steady water flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your pool water clear without hassle: these Tier1 replacement cartridges are made to drop into systems that accept Hayward C1100 and equivalent models. Each cartridge measures 23-5\/16\" x 8-1\/2\" and pairs an engineered high-flow core with advanced trilobal dirt-capture media, giving longer run times between cleanings while protecting pumps and heaters from flow restriction.\u003c\/p\u003e\n\n\u003ch3\u003eWill this cartridge fit my Hayward C1100 or compatible filter?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridge is designed to match the critical dimensions and connection style for Hayward C1100 and many cross-reference models. Check measurements and model numbers before ordering to ensure a correct fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal size: 23-5\/16\" length by 8-1\/2\" diameter\u003c\/li\u003e\n  \u003cli\u003eCross-references include Star Clear IIC1100, Filbur FC-1290, Pleatco PA100, Unicel C-8610 and others\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack so you can replace both cartridges at once\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does trilobal media improve filtration compared with standard cartridges?\u003c\/h3\u003e\n\u003cp\u003eTrilobal fibers have a three-lobed profile that increases surface area and creates more mechanical trapping points, so they capture finer particles with less pressure drop. That means clearer water between cleanings and fewer strain cycles on your filtration system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigher dirt-holding capacity versus round fibers\u003c\/li\u003e\n  \u003cli\u003eCaptures hair, leaves, fine sediment, and organic debris\u003c\/li\u003e\n  \u003cli\u003eMaintains better flow to protect pumps and heaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this cartridge durable and safe for pool equipment?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges are manufactured to consistent tolerances and tested to recognized performance standards to help ensure long life and reliable operation. The robust core supports steady circulation, avoiding the pressure spikes that can lead to equipment strain.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInternal high-flow core for uniform water circulation\u003c\/li\u003e\n  \u003cli\u003eConstructed to withstand routine cleaning cycles\u003c\/li\u003e\n  \u003cli\u003eIndependently tested to NSF 50 performance protocols\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I maintain and clean these replacement cartridges?\u003c\/h3\u003e\n\u003cp\u003eRoutine maintenance is straightforward: rinse debris with a garden hose and periodically soak in a recommended cartridge cleaner for deeper removal of oils and scale. Replace both cartridges as needed when pleats show permanent staining or damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHose off from top to bottom after pump shutdown\u003c\/li\u003e\n  \u003cli\u003eUse a cartridge-cleaning solution for oily or mineral buildup\u003c\/li\u003e\n  \u003cli\u003eInspect pleats and core; replace when integrity is compromised\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners and service professionals who need a dependable, ready-to-install replacement for Hayward C1100-style filter cartridges. Choose this Tier1 2-pack if you want improved debris capture from trilobal fibers, a solid high-flow core to protect pumps and heaters, and cartridges sized to fit common cross-reference models.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these cartridges compatible with Hayward C1100?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They match Hayward C1100 dimensions and cross-reference several equivalent models; verify your cartridge size before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace when pleats show permanent staining, damage, or noticeably reduced flow; typical lifespan varies with usage and maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56806089195860,"sku":"B07BQHWRDB","price":204.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-hayward-c1100-replacement.jpg?v=1786813025"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-pentair-r173215-2-pack-23-5-8-x-10-1-16-high-flow-trilobal-media","title":"Tier1 Pool Filter Cartridge Replacement for Pentair R173215 — 2-Pack, 23-5\/8\" x 10-1\/16\", High-Flow Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Pentair R173215 Pool Filter Cartridge (2-pack) is a direct-fit, high-flow pool filtration cartridge designed to trap more debris and maintain steady water circulation for compatible pool systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your pool water clear without changing your filtration setup: this Tier1 two-pack replaces Pentair R173215 and a wide range of equivalent cartridges, fitting into common canister filters with the same 23-5\/8\" x 10-1\/16\" dimensions. Constructed with trilobal fibers and a reinforced core, these cartridges capture fine particles while preserving pump efficiency. They’re independently tested for durability and performance, making them a practical swap when your existing element is worn or clogged.\u003c\/p\u003e\n\n\u003ch3\u003eWhat models will this Tier1 cartridge replace?\u003c\/h3\u003e\n\u003cp\u003eThese replacement cartridges are made to work with many popular original-equipment filter part numbers. If your system lists any of the referenced model numbers, this Tier1 cartridge is engineered as a compatible substitute that installs the same way as the original.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacements: Pentair R173215, Clean \u0026amp; Clear 100\u003c\/li\u003e\n  \u003cli\u003eAftermarket equivalents: Pleatco PAP100-4, Unicel C-9410, Filbur FC-0686\u003c\/li\u003e\n  \u003cli\u003eOther listed cross-references: 59054200, Predator 100, PCRP100, C9410\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses trilobal-shaped fibers rather than simple round strands, increasing surface area and mechanical trapping ability. That geometry captures a higher proportion of dirt and organic matter while still allowing water to pass freely, which reduces strain on the pump.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigher particle capture compared with standard round fibers\u003c\/li\u003e\n  \u003cli\u003eEfficient removal of hair, leaves, and fine sediment\u003c\/li\u003e\n  \u003cli\u003eMaintains strong flow to protect pump and heater performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these cartridges fit my filter and maintain proper flow?\u003c\/h3\u003e\n\u003cp\u003eWith a specified size of 23-5\/8\" tall and 10-1\/16\" diameter, these Tier1 cartridges are engineered for a reliable, leak-free fit in compatible housings. They include a reinforced internal core that sustains consistent circulation and prevents collapse under normal operating pressure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact dimensions designed for seamless installation\u003c\/li\u003e\n  \u003cli\u003eInternal high-flow core preserves steady water movement\u003c\/li\u003e\n  \u003cli\u003eReduces risk of pressure spikes or flow restriction\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHas this replacement been independently tested?\u003c\/h3\u003e\n\u003cp\u003eYes — the Tier1 cartridges have been evaluated against established performance protocols to verify durability and filtration capability. Independent testing helps confirm these elements will perform as expected when installed and maintained properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested to recognized NSF-related standards for consistency\u003c\/li\u003e\n  \u003cli\u003eBuilt to withstand regular pool cycles without rapid breakdown\u003c\/li\u003e\n  \u003cli\u003eQuality checks on media and core to ensure long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Pool owners and service technicians who need a dependable, affordable replacement for Pentair R173215 and its equivalents will find this Tier1 two-pack useful. It suits residential and light-commercial filters that require the specified 23-5\/8\" x 10-1\/16\" cartridge, particularly when improved debris capture and sustained flow are priorities. Choose these cartridges when you want an easy swap that restores filtration performance without altering your existing plumbing or equipment setup.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this Tier1 cartridge fit Pentair R173215 housings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This Tier1 cartridge matches the Pentair R173215 dimensions and is designed for direct installation in compatible housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these filter cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replacement frequency varies by use and water conditions; typically inspect and replace every 1–2 seasons or when cleaning no longer restores flow.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56806089294164,"sku":"B07BQHFJP9","price":263.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-replacement-cartridge.jpg?v=1786813029"},{"product_id":"tier1-replacement-pool-filter-cartridge-for-pentair-ccp320-4-pack-20-x-7-trilobal-media-high-flow","title":"Tier1 Replacement Pool Filter Cartridge for Pentair CCP320 — 4-Pack 20 x 7, Trilobal Media High-Flow","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Pentair CCP320 is a 20\" x 7\" four-pack pool filter cartridge built with trilobal dirt-lock media to capture more debris while preserving steady flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen your Pentair Clean \u0026amp; Clear Plus 320 or compatible system needs new cartridges, this Tier1 4-pack provides a direct-fit, performance-focused replacement. Designed to fit the same housings as Pentair CCP320 and equivalent OEM part numbers, these cartridges balance high capture efficiency with an engineered core that maintains pump-friendly circulation. The result is clearer water with minimal pressure fluctuation and a simple swap-in installation.\u003c\/p\u003e\n\n\u003ch3\u003eWill these cartridges fit my Pentair Clean \u0026amp; Clear Plus 320 system?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the cartridges are sized and shaped to match standard CCP320-compatible housings. Tier1 engineered the 20\" x 7\" dimensions and sealing surfaces to align with common OEM specifications so you can replace worn filters without modification.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for Pentair CCP320 and related models.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Filbur FC-1976, Unicel C-7470, Pleatco PCC80 and others.\u003c\/li\u003e\n  \u003cli\u003e20\" length and 7\" diameter for correct fit and sealing.\u003c\/li\u003e\n  \u003cli\u003eDesigned to avoid leaks or gaps in the filter housing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does trilobal dirt-lock media improve filtration?\u003c\/h3\u003e\n\n\u003cp\u003eTrilobal fibers have a triangular cross-section that creates more surface area and tiny pockets for trapping particles. Compared with conventional round fibers, this media captures a higher percentage of fine debris while still allowing water to flow through efficiently.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCaptures up to 40% more debris than round-fiber cartridges.\u003c\/li\u003e\n  \u003cli\u003eEffective against hair, leaves, sand and fine particulate.\u003c\/li\u003e\n  \u003cli\u003eMaintains flow to reduce strain on pumps and heaters.\u003c\/li\u003e\n  \u003cli\u003eDurable construction resists collapsing or flattening under pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these cartridges tested for performance and longevity?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the cartridges have been tested to NSF 50 protocols for filtration performance and durability, providing third-party validation of consistent operation. That testing ensures the media and core withstand typical pool conditions and deliver repeatable clarity results when maintained properly.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIndependent NSF 50 testing for filtration quality.\u003c\/li\u003e\n  \u003cli\u003eSturdy inner core engineered for sustained high-flow operation.\u003c\/li\u003e\n  \u003cli\u003eManufactured to withstand normal pool chemical exposure and pressure cycles.\u003c\/li\u003e\n  \u003cli\u003ePackaged as a four-pack to reduce frequency of replacement shopping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these cartridges affect pump and heater performance?\u003c\/h3\u003e\n\n\u003cp\u003eThe Tier1 cartridge’s internal high-flow core is designed so water passes evenly through the media, minimizing pressure spikes that can stress pumps or reduce heater efficiency. Proper flow management helps prolong equipment life and keeps circulation consistent without sacrificing filtration quality.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHigh-flow core promotes steady circulation through the system.\u003c\/li\u003e\n  \u003cli\u003eReduces risk of excessive pressure buildup compared with overly dense filters.\u003c\/li\u003e\n  \u003cli\u003eSupports pump longevity by maintaining designed head and flow rates.\u003c\/li\u003e\n  \u003cli\u003eHelps heaters operate as intended by preventing flow restriction-related shutdowns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners or service professionals who need a reliable, cost-effective replacement for Pentair CCP320 and equivalent cartridges. This four-pack is ideal if you want improved debris capture without compromising flow, prefer parts tested against industry standards, and require easy drop-in replacements for routine maintenance. Choose Tier1 when you want compatible dimensions, proven trilobal filtration, and a packaging option that keeps multiple spare cartridges on hand for seasonal care.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these Tier1 replacement cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace cartridges every 1–2 seasons or when you see reduced flow, visible dirt buildup, or recurring pressure increases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these cartridges work with Pleatco and Filbur brands?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They are compatible with Pleatco PCC80, Filbur FC-1976, Unicel C-7470 and several equivalent OEM part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56806101287252,"sku":"B07D94ZRBZ","price":290.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-ccp320-replacement.jpg?v=1786813108"},{"product_id":"tier1-pool-filter-cartridges-for-pentair-ccp240-4-pack-14-1-8-x-7-trilobal-fiber-high-flow-core","title":"Tier1 Pool Filter Cartridges for Pentair CCP240 — 4-Pack 14-1\/8\" x 7\", Trilobal Fiber \u0026 High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Pentair CCP240 is a four-pack of 14-1\/8\" x 7\" high-flow pool filter cartridges built to fit Pentair Clean \u0026amp; Clear Plus 240-compatible systems and capture more debris while preserving consistent water circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen your pool filter needs fresh cartridges, choosing a direct-fit replacement matters for both performance and equipment longevity. These Tier1 cartridges are engineered to match the dimensions and connection style of Pentair CCP240 and other cross-compatible models, using trilobal fiber media and an internal high-flow core to remove debris while maintaining steady pump operation.\u003c\/p\u003e\n\n\u003ch3\u003eWill these cartridges fit my Pentair Clean \u0026amp; Clear Plus 240 filter?\u003c\/h3\u003e\n\u003cp\u003eYes — the Tier1 replacement cartridges are sized and shaped to install directly where Pentair CCP240 cartridges go. They follow the same outer diameter and overall length to prevent gaps, misalignment, or installation difficulty.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact dimensions: 14-1\/8\" length by 7\" diameter for secure seating.\u003c\/li\u003e\n  \u003cli\u003eDesigned for Pentair CCP240, 160310 and other cross-compatible models.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Pleatco PCC60, Unicel C-7469, Filbur FC-1975, and similar cartridges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal dirt-lock media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eThe trilobal fiber profile increases surface area and creates small pockets that trap fine particles more effectively than round fibers. That means more debris caught per cartridge, while the media still allows efficient water flow to protect pump and heater function.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fibers capture up to 40% more debris versus standard round fibers.\u003c\/li\u003e\n  \u003cli\u003eEffective at trapping hair, leaves, sand, and fine particulate matter.\u003c\/li\u003e\n  \u003cli\u003eMedia structure reduces frequent clogs while maintaining throughput.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these cartridges affect pump pressure or heating performance?\u003c\/h3\u003e\n\u003cp\u003eNo — the Tier1 cartridges include an internal high-flow core engineered to maintain steady circulation and avoid unnecessary restriction. That reduces the risk of elevated pump strain or reduced heater flow often seen with lower-quality replacements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered high-flow core supports consistent water circulation.\u003c\/li\u003e\n  \u003cli\u003eHelps prevent pressure build-up that can stress pumps or reduce heater efficiency.\u003c\/li\u003e\n  \u003cli\u003eBalanced design keeps filtration effective without sacrificing flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these cartridges tested for quality and durability?\u003c\/h3\u003e\n\u003cp\u003eYes — these Tier1 cartridges have been independently evaluated to NSF 50-related performance standards for pool filtration, demonstrating consistent filtration capability and material durability under real-world conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested to NSF 50 protocols for filtration performance and construction.\u003c\/li\u003e\n  \u003cli\u003eDurable end caps and pleat construction for repeated cleanings.\u003c\/li\u003e\n  \u003cli\u003ePack of four provides full-system replacement or spares for seasonal upkeep.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Pool owners and maintenance professionals who need a reliable, cost-effective replacement for Pentair CCP240-style cartridges. Choose this Tier1 4-pack if you want precise fitment (14-1\/8\" x 7\"), improved debris capture with trilobal media, and an internal high-flow core that protects pump and heater performance. It's also a practical option for anyone replacing Pleatco PCC60, Unicel C-7469, Filbur FC-1975, or similar cartridges and seeking cartridges tested to NSF 50 standards for predictable, long-lasting filtration.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFeatures at a glance:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCOMPATIBLE MODELS – Replacement for Pentair Clean and Clear Plus 240, CCP240, Pentair 160310, Pleatco PCC60, Unicel C-7469, Filbur FC-1975, PLFPCC60, Aladdin 16011, R173572, SD-00161 filtration cartridges.\u003c\/li\u003e\n  \u003cli\u003eDIMENSIONS FOR RELIABLE FIT – 14-1\/8\" x 7\" cartridge engineered for seamless installation and a leak-free seal.\u003c\/li\u003e\n  \u003cli\u003eTRILOBAL DIRT-LOCK MEDIA – Advanced trilobal fibers trap more debris than standard round fibers while keeping water flowing.\u003c\/li\u003e\n  \u003cli\u003eTESTED TO NSF 50 STANDARDS – Independently evaluated for consistent performance and robust construction.\u003c\/li\u003e\n  \u003cli\u003eENGINEERED FOR CONSISTENT FLOW – Internal high-flow core designed to maintain steady circulation and protect pump performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these cartridges a direct replacement for Pentair CCP240?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They match the CCP240 dimensions and fit, designed for direct replacement in Pentair Clean \u0026amp; Clear Plus 240 systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these filter cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace based on performance: typically yearly or when flow drops significantly, and clean pleats regularly to extend life.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56806110691668,"sku":"B07GS9QW87","price":193.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging_c6a68601-d12f-465e-8753-737467f51a8c.jpg?v=1786813220"},{"product_id":"tier1-spa-filter-replacement-for-marquis-ppm35sc-2-pack-trilobal-dirt-lock-media-high-flow-core","title":"Tier1 Spa Filter Replacement for Marquis PPM35SC – 2-Pack, Trilobal Dirt-Lock Media \u0026 High-Flow Core","description":"\u003cstrong\u003eTier1 Replacement for Marquis Spa PPM35SC Filter (2pk) is a pair of 12-3\/16\" × 5-1\/4\" spa cartridges engineered to fit Marquis PPM35SC-compatible systems and trap more debris while preserving steady water flow.\u003c\/strong\u003e\n\n\u003cp\u003eThese two Tier1 cartridges are designed to be a drop-in replacement for Marquis PPM35SC and a long list of compatible part numbers. Built with trilobal dirt-lock fibers and a high-flow internal core, the filters balance debris capture and circulation so pumps and heaters run efficiently. Independent testing to NSF 50 protocols supports their durability and performance under normal spa conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes the trilobal dirt-lock media different from standard filter fibers?\u003c\/h3\u003e\n\u003cp\u003eTrilobal fibers have a triangular-like cross-section that increases surface area and creates mechanical edges to trap particles more effectively than round fibers. That geometry helps capture fines, hair, and organic debris without choking flow as quickly as some traditional pleats.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCaptures up to 40% more debris versus standard round fiber media.\u003c\/li\u003e\n  \u003cli\u003eMaintains larger open channels for sustained water throughput.\u003c\/li\u003e\n  \u003cli\u003eBetter removal of fine particles that can cloud water.\u003c\/li\u003e\n  \u003cli\u003eDurable fibers resist collapsing under pressure cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these filters fit my spa that lists Pleatco PPM35SC-F2M or Filbur FC-0195?\u003c\/h3\u003e\n\u003cp\u003eYes—these Tier1 cartridges are sized and profiled to be compatible with Marquis PPM35SC, Pleatco PPM35SC-F2M, Filbur FC-0195, Unicel 5CH-352 and other listed cross-reference part numbers. The physical dimensions and sealing surfaces match the standards used by those manufacturers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimension: 12-3\/16\" length × 5-1\/4\" outer diameter for reliable fit.\u003c\/li\u003e\n  \u003cli\u003eDesigned to seat correctly in common spa filter housings without adapters.\u003c\/li\u003e\n  \u003cli\u003eWorks with a wide range of legacy and current spa models that accept these part numbers.\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack for replacing both filters in systems requiring dual cartridges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the internal high-flow core help spa equipment performance?\u003c\/h3\u003e\n\u003cp\u003eThe internal core is engineered to support steady circulation, preventing excessive backpressure that can strain pumps or alter heater operation. A consistent flow path keeps turnover rates predictable while the media focuses on particle capture.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow core reduces restriction, protecting pump longevity.\u003c\/li\u003e\n  \u003cli\u003eMaintains circulation without forcing system overrides or added maintenance.\u003c\/li\u003e\n  \u003cli\u003eEven flow distribution across pleats extends usable filter life between cleanings.\u003c\/li\u003e\n  \u003cli\u003eHelps avoid common issues caused by overly dense filters or collapsed cores.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I clean and when should I replace these cartridges?\u003c\/h3\u003e\n\u003cp\u003eRinse the filter with a hose to remove surface debris and soak periodically in a filter-cleaning solution to dissolve oils and lotions. Inspect for frayed pleats or collapsed sections—replace the cartridge when structural wear or persistent odor and discoloration remain after cleaning.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse weekly under running water and soak monthly with a recommended cleaner.\u003c\/li\u003e\n  \u003cli\u003eReplace when pleats no longer spring back or media shows permanent staining.\u003c\/li\u003e\n  \u003cli\u003eTypical replacement intervals depend on usage, bather load, and water chemistry.\u003c\/li\u003e\n  \u003cli\u003eBuying the 2-pack ensures you can replace matched cartridges at the same time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Spa owners and maintenance professionals who need a reliable, NSF-tested replacement for Marquis PPM35SC and cross-reference cartridges. Ideal for hot tubs where improved debris capture and consistent pump-friendly flow matter—especially systems using dual cartridges or those seeking an economical replacement that meets common OEM form and function.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these Tier1 cartridges compatible with my Filbur FC-0195 filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. These Tier1 cartridges are listed as compatible with Filbur FC-0195 and several cross-reference part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the spa filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace when pleats are frayed or staining persists after cleaning; typical intervals vary with use and water care.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56828127904084,"sku":"B07GSL2Z61","price":100.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-marquis-ppm35sc.jpg?v=1786995194"},{"product_id":"tier1-replacement-jacuzzi-spa-filter-6540-723-10-3-4-x-5-3-16-high-flow-cartridge-with-trilobal-dirt-lock-media","title":"Tier1 Replacement Jacuzzi Spa Filter 6540-723 — 10-3\/4\" x 5-3\/16\" High-Flow Cartridge with Trilobal Dirt-Lock Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Jacuzzi Spa 6540-723 Filter is a direct-fit, high-flow spa cartridge built with trilobal dirt-lock fibers to trap more debris while maintaining steady circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you own a spa that lists part number 6540-723 (or compatible cross-references such as Pleatco PJW40SC-F2M, Filbur FC-2811, Unicel 5CH-402, SD-00776, CCP305), this Tier1 replacement cartridge restores reliable filtration without modifying the system. The cartridge measures 10-3\/4\" x 5-3\/16\" to match common Jacuzzi filter housings and uses an engineered core and media to preserve pump and heater performance.\u003c\/p\u003e\n\n\u003ch3\u003eWill this Tier1 cartridge fit my Jacuzzi spa?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the Tier1 cartridge is designed to match the footprint and connection style of the Jacuzzi 6540-723 and the listed compatible part numbers. The dimensions and end-cap configuration align with most factory housings so you can swap it in place without adaptations.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eExact dimensions: 10-3\/4\" height by 5-3\/16\" diameter for a snug, leak-free fit.\u003c\/li\u003e\n  \u003cli\u003eCompatible cross-references: Pleatco PJW40SC-F2M, Filbur FC-2811, Unicel 5CH-402, SD-00776, CCP305.\u003c\/li\u003e\n  \u003cli\u003eSame end-cap geometry for direct installation into Jacuzzi filter baskets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal dirt-lock media improve water quality?\u003c\/h3\u003e\n\n\u003cp\u003eThe filter media uses trilobal-shaped fibers that present more surface area and edges than conventional round fibers, capturing more debris while keeping flow high. This structure helps trap hair, leaves, fine particles, and other contaminants without overly restricting water movement.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eUp to 40% increased debris capture versus traditional round-fiber cartridges.\u003c\/li\u003e\n  \u003cli\u003eMaintains strong water flow to protect the pump and heater.\u003c\/li\u003e\n  \u003cli\u003eMedia resists compaction for longer effective service between cleanings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge affect pump or heater performance?\u003c\/h3\u003e\n\n\u003cp\u003eThe Tier1 replacement is built with a high-flow internal core and engineered pleating to deliver consistent circulation without creating excessive backpressure. That design helps keep pump load stable and reduces the risk of heater or flow-sensor issues that can occur with restrictive filters.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eInternal high-flow core preserves steady circulation.\u003c\/li\u003e\n  \u003cli\u003ePleat structure balances filtration efficiency and low resistance.\u003c\/li\u003e\n  \u003cli\u003eTested to maintain adequate flow for typical spa equipment specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Tier1 cartridge durable and tested for safety?\u003c\/h3\u003e\n\n\u003cp\u003eThis cartridge is independently evaluated to performance and durability benchmarks aligned with NSF 50 testing protocols. The construction and materials are selected to withstand routine spa chemical exposure and repeated cleanings.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 standards for filtration performance.\u003c\/li\u003e\n  \u003cli\u003eRobust materials resist breakdown from normal sanitizer and pH ranges.\u003c\/li\u003e\n  \u003cli\u003eDesigned for multiple clean-and-reuse cycles when maintained properly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Spa owners and service technicians who need a reliable, direct-fit replacement for Jacuzzi 6540-723 and equivalent cartridges. If you want improved debris capture without compromising circulation — and prefer an economical aftermarket option that meets industry testing standards — this Tier1 cartridge is a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this filter in any Jacuzzi model?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use it where the spa specifies part 6540-723 or compatible cross-references; verify the 10-3\/4\" x 5-3\/16\" dimension before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean the Tier1 cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean every 4–6 weeks under normal use, or sooner if you notice reduced flow or visible debris buildup.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56829266002260,"sku":"B009B6KU8Q","price":75.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-replacement-filter.jpg?v=1786997278"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-pentair-rainbow-25-2-pack-nsf-50-tested-trilobal-media","title":"Tier1 Pool Filter Cartridge Replacement for Pentair Rainbow 25 — 2-Pack, NSF-50 Tested Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement Pentair Rainbow 25 Pool Filter (2-Pack) are direct-fit, NSF-50 tested filter cartridges engineered to restore clear pool water by trapping fine debris while maintaining steady flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Tier1 cartridges replace a wide range of legacy filter elements (including Dynamic 17-2327, Pleatco PRB25-IN, Unicel C-4326 and Filbur FC-2375) and are built to the same outer dimensions so they slide into compatible systems without modification. The pair includes a high-flow internal core and trilobal dirt-lock media designed to capture more particles than traditional round fibers. They are intended for pool owners and service technicians who want a reliable, affordable alternative to OEM cartridges.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these cartridges fit my existing Pentair Rainbow 25 system?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges are sized to match the Rainbow 25 and equivalent models so installation is plug-and-play with compatible housings. No trimming or adapters are usually required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact cartridge dimensions: 13-5\/16\" x 4-15\/16\" for correct seating.\u003c\/li\u003e\n  \u003cli\u003eCompatible with many cross-reference part numbers for easy replacement.\u003c\/li\u003e\n  \u003cli\u003eDesigned to form a secure seal to minimize bypass and leakage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance improvements can I expect over standard cartridges?\u003c\/h3\u003e\n\u003cp\u003eThe trilobal fiber construction increases surface area and mechanical capture, so the cartridges trap more dirt, hair and fine particles while supporting good water throughput. The internal core maintains steady flow without creating excessive pressure on the pump.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal dirt-lock media captures up to 40% more debris than round fibers.\u003c\/li\u003e\n  \u003cli\u003eHigh-flow internal core supports consistent circulation and pump protection.\u003c\/li\u003e\n  \u003cli\u003eMedia design balances fine filtration with service life and flow efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these cartridges durable and safe for pool systems?\u003c\/h3\u003e\n\u003cp\u003eTier1 cartridges are tested to NSF 50 performance protocols for pool filtration, providing an independent measure of durability and function. They are constructed to withstand normal pool environments and repeated cleanings when maintained properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 standards for filtration performance.\u003c\/li\u003e\n  \u003cli\u003eRobust pleat structure resists collapse during operation and cleaning.\u003c\/li\u003e\n  \u003cli\u003eBuilt to hold shape across multiple service cycles when rinsed correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I maintain these filter cartridges for longest life?\u003c\/h3\u003e\n\u003cp\u003eRoutine rinsing with a hose and occasional deep cleaning will keep pleats working efficiently. Replace cartridges when damage, permanent staining, or flow decline indicates lost effectiveness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse pleats weekly during heavy use seasons to remove trapped debris.\u003c\/li\u003e\n  \u003cli\u003eUse cartridge cleaner periodically for oil or mineral buildup; follow cleaner directions.\u003c\/li\u003e\n  \u003cli\u003eReplace both cartridges in the set when pleats tear, core deforms, or pressure rises noticeably.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Pool owners, property managers, and service technicians who need a cost-effective replacement for Pentair Rainbow 25 and cross-referenced cartridges will find this Tier1 2-pack appropriate. It’s aimed at users who want improved particle capture with maintained pump flow, NSF-50 tested assurance, and a straightforward, direct-fit swap for older or matching filtration systems.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these fit my Pentair Rainbow 25 filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this Tier1 cartridge matches Rainbow 25 dimensions and cross-reference part numbers for a direct fit in compatible housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace when pleats are damaged, flow drops significantly, or after repeated deep cleanings; many pools need replacement every 1–2 seasons depending on use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56830052172116,"sku":"B07D94HH2L","price":85.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-view.jpg?v=1787000651"},{"product_id":"tier1-replacement-spa-filter-cartridge-for-marquis-ppm35sc-12-3-16-5-1-4-trilobal-high-flow","title":"Tier1 Replacement Spa Filter Cartridge for Marquis PPM35SC — 12-3\/16\"×5-1\/4\", Trilobal High-Flow","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Marquis Spa PPM35SC is a direct-fit spa filter cartridge sized 12-3\/16\" × 5-1\/4\" that uses trilobal dirt-lock fibers and a high-flow core to trap more debris while maintaining steady circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your hot tub water clear and your equipment running smoothly with a replacement cartridge that fits popular spa filter housings. This Tier1 cartridge is engineered to match the Marquis PPM35SC form factor and cross-references common OEM part numbers so you can replace the old element without guessing. It combines upgraded media with an internal high-flow core, and it has been independently tested to NSF 50 protocols to confirm performance and durability.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge capture more debris without restricting water flow?\u003c\/h3\u003e\n\u003cp\u003eThe filter uses trilobal dirt-lock fibers that create more surface area and mechanical trapping points than conventional round fibers. That design captures fine particles like hair and silt while allowing water to pass efficiently through the pleats. An internal high-flow core keeps circulation consistent so pumps and heaters operate without undue strain.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fibers increase debris capture by up to 40% versus round fibers.\u003c\/li\u003e\n  \u003cli\u003ePleated construction maximizes filtration area in a compact cartridge.\u003c\/li\u003e\n  \u003cli\u003eHigh-flow internal core preserves steady pump and heater performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this Tier1 filter fit my spa that used a Marquis PPM35SC?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridge dimension of 12-3\/16\" × 5-1\/4\" matches the Marquis PPM35SC footprint and several equivalent replacement numbers. It’s designed for a direct swap in compatible housings, eliminating the need to modify seal seats or adaptors. Always compare dimensions and model references during purchase to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact size: 12-3\/16\" height by 5-1\/4\" diameter for reliable fit.\u003c\/li\u003e\n  \u003cli\u003eCross-references: Pleatco PPM35SC-F2M, Filbur FC-0195, Unicel 5CH-352, and others.\u003c\/li\u003e\n  \u003cli\u003eDrop-in replacement—no trimming or special tools required when matched correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat testing or standards back the Tier1 replacement cartridge?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge has been independently evaluated to NSF 50 performance protocols, which assess filtration effectiveness and durability in recreational water systems. NSF testing helps verify that materials and construction meet industry expectations for pool and spa filtration. While testing supports reliable performance, routine maintenance remains essential for optimal water quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested to NSF 50 procedures for filtration performance and longevity.\u003c\/li\u003e\n  \u003cli\u003eDurable pleats resist early collapse and help extend cartridge life.\u003c\/li\u003e\n  \u003cli\u003eEngineered materials balance capture efficiency with consistent flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I care for this filter cartridge to get the best lifespan?\u003c\/h3\u003e\n\u003cp\u003eRegular rinsing and periodic deep cleaning will keep the cartridge operating at peak efficiency. Remove loose debris with a garden hose between uses and soak in an appropriate filter-cleaning solution according to the cleaner’s directions every few months or as water conditions dictate. Replace the cartridge when pleats show permanent staining, damage, or when flow declines despite cleaning.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse with an angled spray to remove surface debris after each use.\u003c\/li\u003e\n  \u003cli\u003eDeep clean with a compatible cartridge cleaner every 3–6 months.\u003c\/li\u003e\n  \u003cli\u003eInspect pleats and endcaps; replace when visibly worn or flow is reduced.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tier1 Replacement for Marquis Spa PPM35SC is ideal for spa owners who need a reliable, direct-fit cartridge that boosts debris capture without compromising circulation. It’s a good choice for people replacing older OEM cartridges, owners of compatible spa models listed among the cross-references, and anyone who prefers an NSF-tested aftermarket option to maintain clearer water and steady equipment performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this filter compatible with Marquis PPM35SC?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This Tier1 cartridge matches the Marquis PPM35SC dimensions and compatible cross-reference part numbers for a direct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace this filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse after each use, deep-clean every 3–6 months, and replace when pleats are damaged or flow remains reduced after cleaning.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56831173460308,"sku":"B00RHR622E","price":71.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-view-marquis-ppm35sc-replacement.jpg?v=1787012383"},{"product_id":"tier1-pma10-replacement-pool-filter-cartridge-2-pack-trilobal-media-high-flow-core","title":"Tier1 PMA10 Replacement Pool Filter Cartridge 2-Pack — Trilobal Media, High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eThis Tier1 two-pack replacement cartridge fits Sta‑Rite PMA10-compatible pool filters and uses trilobal media to trap more debris while preserving steady water flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool or spa cartridge is clogged, torn, or near the end of its service life, swapping in a reliable replacement restores filtration performance quickly. These Tier1 cartridges are dimensioned and engineered to match common OEM models such as Master Spa X268057, Pleatco PMA10-M, Unicel C-3310AM and Filbur FC-1001M so you can replace worn elements without modifying the housing.\u003c\/p\u003e\n\n\u003ch3\u003eHow does Tier1’s trilobal media improve debris capture?\u003c\/h3\u003e\n\u003cp\u003eThe trilobal fiber profile increases surface area and creates more microscopic trapping points than standard round fibers. That translates into better capture of hair, pollen, sand and fine particulates while maintaining water flow.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTraps up to 40% more debris versus conventional round-fiber cartridges\u003c\/li\u003e\n  \u003cli\u003eFiner particle retention without excessive pressure buildup\u003c\/li\u003e\n  \u003cli\u003eEffective for both pools and hot tubs where fine contaminants are common\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge physically fit my filter housing?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 replacement is sized at 7\" height by 3-7\/8\" diameter to match PMA10-style cartridges and the listed OEM cross-references. Measure your existing element to confirm fit before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 7\" (height) x 3-7\/8\" (diameter)\u003c\/li\u003e\n  \u003cli\u003eDesigned for housings that accept PMA10 and compatible models\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack for a coordinated change-out of dual-element systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this cartridge affect pump and heater performance?\u003c\/h3\u003e\n\u003cp\u003eAn internal high-flow core sustains steady circulation while the pleated media removes contaminants. The design reduces restrictive pressure spikes that can stress pumps or reduce heater efficiency when filters become over-restrictive.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core preserves circulation and pump protection\u003c\/li\u003e\n  \u003cli\u003eMaintains lower differential pressure compared to overly compact media\u003c\/li\u003e\n  \u003cli\u003eWorks with standard filter maintenance habits like periodic rinsing and replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Tier1 cartridge tested or certified for quality?\u003c\/h3\u003e\n\u003cp\u003eTier1 cartridges are independently tested to NSF 50 protocols for filtration performance and durability benchmarks. While not a substitute for scheduled maintenance, NSF testing indicates predictable performance under controlled conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 standards\u003c\/li\u003e\n  \u003cli\u003eEngineered for consistent clarity and long-term durability\u003c\/li\u003e\n  \u003cli\u003eManufactured to match OEM sizing for straightforward replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Pool and spa owners, service technicians, and property managers who need a cost-effective direct replacement for PMA10-style cartridges will find this Tier1 2-pack useful. It’s aimed at users who prioritize improved debris capture, predictable flow rates, and an easy drop-in swap for common OEM models. Replace cartridges on schedule or when pressure indicates the pleats are clogged to keep pumps running efficiently and water clear.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these Tier1 cartridges compatible with Sta‑Rite PMA10 filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They are sized and referenced to fit PMA10-style housings and match listed OEM cross-references like Pleatco PMA10-M and Unicel C-3310AM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace when pressure rise indicates clogging or at manufacturer-recommended intervals, typically every 3–12 months depending on use and water conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56831182864724,"sku":"B07GSJS26F","price":71.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-two-pack_a46b2718-748b-496a-9355-f98683b410a3.jpg?v=1787012551"},{"product_id":"tier1-spa-filter-cartridge-replacement-for-maax-spas-8-x-5-5-8-trilobal-high-flow-reinforced-core","title":"Tier1 Spa Filter Cartridge Replacement for Maax Spas 8\" x 5-5\/8\" — Trilobal High-Flow, Reinforced Core","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Maax Spas Filter Cartridge is an 8\" x 5-5\/8\" high-flow spa filter built with trilobal fiber media to trap more debris while preserving steady water circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your spa water clearer and your equipment running smoothly with a direct-fit replacement designed to match common Maax-compatible cartridges. This Tier1 cartridge works with many Pleatco, Filbur, and Unicel part equivalents and is sized to drop into the same housing without adapters. Its advanced fiber structure and reinforced core aim to balance dirt capture and flow so pumps and heaters aren’t stressed by restricted circulation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve clarity compared with ordinary cartridges?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses trilobal dirt-lock fibers that present more surface area and sharper interception points than standard round fibers, allowing the element to catch finer particles and hair. Because it traps more contaminants up front, water looks cleaner between maintenance intervals. The structure helps preserve peak flow so mechanical systems are not forced to run harder to move water.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fiber media captures up to 40% more debris than round fibers\u003c\/li\u003e\n  \u003cli\u003eFine-particle retention reduces visible cloudiness\u003c\/li\u003e\n  \u003cli\u003eMaintains flow to avoid pump strain and heater inefficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge fit my Maax spa or equivalent housing?\u003c\/h3\u003e\n\u003cp\u003eThis Tier1 replacement is manufactured to match the common dimensions for many Maax-compatible filters at 8\" tall by 5-5\/8\" diameter. It is cross-referenced to several OEM part numbers so you can choose it as a drop-in substitute where those models are specified. Always confirm your existing cartridge measurements and mounting style before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned to replace Pleatco PAS35P, PMAX50 equivalents\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with Filbur FC-0300 and Unicel 5CH-35 types\u003c\/li\u003e\n  \u003cli\u003eMeasures 8\" x 5-5\/8\" for a direct physical fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the internal construction affect circulation and equipment life?\u003c\/h3\u003e\n\u003cp\u003eAn engineered high-flow internal core prevents the pleats from collapsing and preserves even water passage through the cartridge. That steady circulation lowers the risk of cavitation and reduces strain on the pump and heater. The result is more efficient operation and potentially longer component lifespan when filters are changed regularly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRigid core supports pleat stability under pressure\u003c\/li\u003e\n  \u003cli\u003eEven flow distribution minimizes hotspots and pressure drops\u003c\/li\u003e\n  \u003cli\u003eCompatible flow characteristics help protect pumps and heaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat standards and testing back this replacement filter?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 cartridge has been evaluated to NSF 50 protocols for performance and durability, reflecting its ability to meet recognized industry filtration benchmarks. Independent testing helps ensure the media and construction deliver repeatable results under normal spa operating conditions. While testing supports reliability, routine maintenance remains essential for optimal water quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested to NSF 50 standards for equipment and materials\u003c\/li\u003e\n  \u003cli\u003eDurability-minded construction for repeated use cycles\u003c\/li\u003e\n  \u003cli\u003eMeets common OEM cross-reference part numbers for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Tier1 Replacement for Maax Spas Filter Cartridge is aimed at spa owners who need a dependable, easy-to-install alternative to OEM cartridges. It suits anyone looking to improve fine-particle capture without sacrificing circulation — ideal for owners of Maax-compatible systems, service professionals stocking replacements, and homeowners who prefer to change filters on a regular schedule to maintain clearer water and efficient equipment operation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this Tier1 filter compatible with my Maax spa?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If your existing cartridge matches 8\" x 5-5\/8\" and lists Pleatco PAS35P, PMAX50, Filbur FC-0300, or Unicel 5CH-35 as equivalents, this Tier1 replacement should fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace based on usage and water conditions—commonly every 3–6 months; inspect monthly and clean when visibly dirty to maintain flow.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56831842124116,"sku":"B00FW0MX7G","price":65.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-view-packaging.jpg?v=1787020697"},{"product_id":"tier1-clearwater-30-pool-filter-cartridge-10-1-2-x-6-high-flow-trilobal-dirt-lock-media","title":"Tier1 Clearwater 30 Pool Filter Cartridge — 10-1\/2\" x 6\" High-Flow, Trilobal Dirt-Lock Media","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement Waterway Clearwater 30 is a 10-1\/2\" x 6\" high-flow pool filter cartridge that uses trilobal dirt-lock media to capture more debris while maintaining steady water circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement filter cartridge is built to fit a wide range of Waterway- and OEM-style housings and offers an engineered core and advanced fiber shape to balance filtration efficiency with pump-friendly flow. It’s compatible with many Watkins, Filbur, Unicel, Pleatco and other part numbers, making it a convenient swap when you need to restore filtration performance without modifying plumbing or equipment.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge improve debris capture compared with a standard filter?\u003c\/h3\u003e\n\u003cp\u003eThe Clearwater 30 uses trilobal fibers which provide a higher surface area and mechanical interlock compared to round fibers, collecting more fine particles and common pool contaminants. That design helps trap hair, leaves, sand and other solids while keeping pores open longer between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal dirt-lock media captures up to 40% more debris than conventional round-fiber cartridges.\u003c\/li\u003e\n  \u003cli\u003ePleated surface increases overall filtration area for finer particle retention.\u003c\/li\u003e\n  \u003cli\u003eWorks across a range of particle sizes for consistent clarity without chemical changes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this filter fit my existing Waterway or equivalent housing?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge measures 10-1\/2\" tall by 6\" diameter and is made as a drop-in replacement for multiple OEM part numbers. It’s sized to seat securely in compatible housings and maintain a seal that prevents bypass and leak paths when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Watkins 31489, Filbur FC-3915, Unicel C-6330\/C-6430\/C-6430RA and others.\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for Pleatco PWK30 series and similar pool cartridges.\u003c\/li\u003e\n  \u003cli\u003eDesigned to fit standard Clearwater 30 housings without adapters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the internal core affect pump and heater performance?\u003c\/h3\u003e\n\u003cp\u003eThe Clearwater 30 includes a high-flow internal core engineered to support steady water movement through the pleats, minimizing pressure spikes that can strain pumps or affect heaters. The structure aims to preserve flow while still maintaining effective filtration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInternal high-flow core prevents collapse under pressure and supports continuous circulation.\u003c\/li\u003e\n  \u003cli\u003eEngineered pleat spacing maintains flow as the cartridge loads with debris.\u003c\/li\u003e\n  \u003cli\u003eStable flow characteristics reduce risk of pump cavitation or heater restriction seen with some low-flow media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat standards and durability can I expect from this replacement cartridge?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 Clearwater 30 has been tested to NSF 50 protocols for performance and durability, indicating it meets recognized industry benchmarks for safety and operational consistency. It’s constructed to withstand repeated cleanings and seasonal use when maintained according to guidelines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 standards for filtration performance and durability.\u003c\/li\u003e\n  \u003cli\u003eRobust pleat construction resists deformation during cleaning cycles.\u003c\/li\u003e\n  \u003cli\u003eMaterials selected to tolerate typical pool chemical exposure when rinsed and dried between seasons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Tier1 Waterway Clearwater 30 is intended for pool owners and service technicians looking for a reliable, higher-efficiency replacement cartridge that fits common Waterway and OEM housings. Choose this filter if you want improved debris capture, a drop-in fit for many Watkins\/Filbur\/Unicel\/Pleatco part numbers, and a design that supports consistent pump and heater flow without major system changes.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the Tier1 Clearwater 30 compatible with Filbur and Pleatco models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It replaces Filbur FC-3915 and Pleatco PWK30 series among other listed OEM part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace this cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean when pressure rises or every few weeks during heavy use; replace yearly or as needed based on wear.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56832398295380,"sku":"B00FW0TOLY","price":67.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-clearwater30-front-view.jpg?v=1787028618"},{"product_id":"tier1-spa-filter-cartridge-replacement-pdm25p4-high-flow-trilobal-media-nsf-tested","title":"Tier1 Spa Filter Cartridge Replacement PDM25P4 – High-Flow Trilobal Media, NSF Tested","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Dream Maker Spa Filter Cartridge is a direct-fit filtration cartridge engineered to capture more debris while keeping steady water flow in compatible Dream Maker spa systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement cartridge is built for homeowners and service technicians who need a dependable, high-capacity filter that fits Dream Maker model PDM25P4 (also sold as FC-0136 \/ SD-00611). With precision dimensions and a trilobal fiber media, the cartridge balances particle removal with minimal restriction to circulation so pumps and heaters operate efficiently. It’s independently tested to NSF 50 protocols for performance and durability, offering a practical upgrade over worn or generic filters.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge improve water clarity without stressing my spa pump?\u003c\/h3\u003e\n\u003cp\u003eThe internal high-flow core maintains steady circulation even as the media collects debris, which avoids sudden pressure spikes that can force pumps to work harder. The design keeps water moving freely while the media traps contaminants.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core for consistent circulation\u003c\/li\u003e\n  \u003cli\u003eEngineered to limit pressure drop under normal load\u003c\/li\u003e\n  \u003cli\u003eProtects pump and heater from flow restriction issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes trilobal media better than standard round-fiber filters?\u003c\/h3\u003e\n\u003cp\u003eTrilobal fibers have a cross-sectional shape that increases surface area and creates more edges to snag particles. That geometry enables this cartridge to capture up to 40% more debris compared with conventional round fibers while retaining efficient water throughput.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncreased surface area catches finer particles\u003c\/li\u003e\n  \u003cli\u003eImproved dirt-locking reduces bypass and re-release\u003c\/li\u003e\n  \u003cli\u003eMaintains flow even as the cartridge loads up with debris\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this filter fit my Dream Maker spa and what are the dimensions?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge is manufactured to match Dream Maker replacement part profiles PDM25P4, FC-0136, and SD-00611. Its precise dimensions ensure a secure, leak-free installation in compatible housings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOverall length: 8-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003eOuter diameter: 4-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct fit — no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this filter tested for quality and durability?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridge has been evaluated to NSF 50-related performance criteria to confirm its filtration capability and structural integrity. Independent testing helps confirm long-term reliability under typical spa conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested for filtration performance and durability\u003c\/li\u003e\n  \u003cli\u003eManufactured to meet consistent quality standards\u003c\/li\u003e\n  \u003cli\u003eDesigned to resist collapsing or premature breakdown\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Tier1 replacement cartridge is ideal for Dream Maker spa owners, pool and spa maintenance professionals, and anyone seeking an affordable, high-performance replacement filter that combines advanced trilobal media with an engineered high-flow core. Choose this cartridge if you want an easy, secure replacement that enhances debris capture while preserving pump and heater performance for reliable spa enjoyment.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this cartridge compatible with Dream Maker PDM25P4?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s manufactured as a direct replacement for Dream Maker PDM25P4 (also listed as FC-0136 and SD-00611).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace based on load and use, typically every 3–12 months; inspect monthly for heavy debris or damage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56833608024404,"sku":"B00FW0W4D4","price":46.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-filter-front-packaging.jpg?v=1787042114"},{"product_id":"tier1-replacement-spa-filter-for-waterway-817-4050-2-pack-trilobal-fiber-high-flow-core","title":"Tier1 Replacement Spa Filter for Waterway 817-4050 — 2-Pack, Trilobal Fiber \u0026 High-Flow Core","description":"\u003cstrong\u003eA two-pack of Tier1 replacement spa filters engineered to match Waterway 817-4050 sizing and deliver high-flow, trilobal-fiber filtration for clearer spa water.\u003c\/strong\u003e\n\n\u003cp\u003eKeep your spa water clean and your circulation steady with these Tier1 replacement cartridges designed as direct-fit alternatives for Waterway 817-4050 and a wide range of equivalent part numbers. Built to the same physical dimensions and tested against NSF 50 protocols, the filters use a trilobal fiber media and an internal high-flow core to trap more debris while maintaining steady pump performance.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes this Tier1 filter compatible with my Waterway spa?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges are manufactured to the dimensions and specifications commonly used by Waterway and other major manufacturers, so they slide into existing housings without modification. The 13-1\/16\" length and 5\" diameter match the original form factor to prevent leaks or loose fits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact 13-1\/16\" x 5\" cartridge size for reliable fit into compatible housings.\u003c\/li\u003e\n  \u003cli\u003eListed cross-compatible with Waterway 817-4050, Pleatco PWW50L, Filbur FC-0172, Unicel 4CH-949 and others.\u003c\/li\u003e\n  \u003cli\u003eDesigned to replace models 817-4050, 25252, SD-01143 with no plumbing changes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal dirt-lock media help water clarity?\u003c\/h3\u003e\n\u003cp\u003eThe specialized trilobal fibers increase surface area and mechanical capture compared with standard round-fiber media. That enhanced geometry traps a higher percentage of fine particles, hair and organic debris while allowing water to flow freely through the element.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fibers capture up to 40% more debris than conventional round fibers.\u003c\/li\u003e\n  \u003cli\u003eImproved retention of fine particles reduces visible cloudiness between cleanings.\u003c\/li\u003e\n  \u003cli\u003eMaintains higher water flow while holding more solids, extending usable life per cleaning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this filter affect my spa pump or heater performance?\u003c\/h3\u003e\n\u003cp\u003eNo—Tier1 cartridges include an internal high-flow core designed to sustain steady circulation without restricting pressure. That means pumps run efficiently and heaters see consistent flow, avoiding the overheating or strain sometimes caused by low-quality filters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core supports steady water circulation and pump efficiency.\u003c\/li\u003e\n  \u003cli\u003eEngineered to avoid pressure drop that can reduce heater effectiveness.\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard spa circulation rates when installed correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this product tested for durability and safety?\u003c\/h3\u003e\n\u003cp\u003eYes. The cartridges have been evaluated against NSF 50 performance protocols to confirm filtration capability and structural durability under normal spa operating conditions. Independent testing helps ensure consistent quality across production runs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 standards for performance and durability.\u003c\/li\u003e\n  \u003cli\u003eManufactured materials selected for long service life in spa environments.\u003c\/li\u003e\n  \u003cli\u003ePackaged as a two-pack for convenient replacement cycles and spare on-hand filters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These Tier1 replacement cartridges are aimed at spa owners, service technicians and property managers who need a reliable, drop-in filter for Waterway 817-4050 and equivalent models. If you want an easy-fit, NSF-tested cartridge that captures more debris without compromising circulation, this two-pack provides cost-effective coverage and peace of mind for routine maintenance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these filters a direct fit for Waterway 817-4050?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. These Tier1 cartridges are made to the 13-1\/16\" x 5\" dimensions and cross-compatible with Waterway 817-4050 and many equivalent part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace or clean these spa filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean monthly under normal use and replace when media shows damage or flow declines; frequency varies by spa usage and bather load.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56834729279828,"sku":"B07GSKSMR9","price":101.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging_ad9cb6f0-f9c6-4dfe-ad67-84b9f260dcaa.jpg?v=1787053133"},{"product_id":"tier1-spa-cartridge-replacement-for-teleweir-35-sf-2-pack-9-1-4-x-4-15-16-trilobal-media-high-flow-core","title":"Tier1 Spa Cartridge Replacement for Teleweir 35 SF - 2-Pack 9-1\/4\" x 4-15\/16\" Trilobal Media, High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Waterway Teleweir 35 SF Filter (2pk) is a pair of 9-1\/4\" x 4-15\/16\" spa cartridges engineered to trap more debris while maintaining steady water flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis two-pack of Tier1 replacement cartridges is built to fit popular Teleweir-style filtration housings and compatible part numbers from Pleatco, Unicel, Baleen and Waterway. The filters use a trilobal fiber media that increases surface area and captures finer particles than conventional round-fiber cartridges. Tested to NSF 50 protocols, these replacements are dimensioned and reinforced to preserve pump performance and simplify routine maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eWill these cartridges fit my Teleweir 35 SF system?\u003c\/h3\u003e\n\u003cp\u003eThese Tier1 cartridges match the common Teleweir 35 SF profile and are dimensioned to replace several OEM and aftermarket part numbers. Measure your existing cartridge to confirm compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 9-1\/4\" height × 4-15\/16\" outer diameter.\u003c\/li\u003e\n  \u003cli\u003eCompatible cross-references: Pleatco PWW35L, Unicel 4CH-935, Waterway 817-4035, Baleen AK-90082, PLF4CH-935.\u003c\/li\u003e\n  \u003cli\u003eTwo cartridges per pack for simultaneous replacement or spare stock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does trilobal dirt-lock media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eThe trilobal fiber shape increases the media surface area and creates more effective particle-capture points than round fibers. That design helps trap hair, fine silt and leaves without excessively restricting flow, extending time between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCaptures up to ~40% more debris versus round-fiber alternatives.\u003c\/li\u003e\n  \u003cli\u003eImproved dirt-holding capacity reduces maintenance frequency.\u003c\/li\u003e\n  \u003cli\u003eMaintains higher open flow to protect pumps and heaters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these filters affect pump or heater performance?\u003c\/h3\u003e\n\u003cp\u003eTier1 cartridges are engineered with an internal high-flow core to sustain steady circulation while filtering effectively. Properly sized filtration prevents undue strain on pumps and avoids common flow-restriction problems that can impact heater operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInternal core designed for consistent water throughput.\u003c\/li\u003e\n  \u003cli\u003eBalanced media density for filtration without excessive pressure drop.\u003c\/li\u003e\n  \u003cli\u003eReduces risk of cavitation or heater shutoff caused by clogged filters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these filters durable and safe for commercial or residential pools and spas?\u003c\/h3\u003e\n\u003cp\u003eThese Tier1 cartridges have been independently tested to NSF 50 performance standards, indicating reliable structural and filtration properties for spa applications. Durable construction supports repeated cleanings and routine handling in both home and light commercial settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNSF 50 tested for consistent filtration results and durability.\u003c\/li\u003e\n  \u003cli\u003eRobust media and endcaps built to withstand multiple cleaning cycles.\u003c\/li\u003e\n  \u003cli\u003eTwo-pack supply helps maintain uninterrupted filtration during service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tier1 Replacement for Waterway Teleweir 35 SF Filter (2pk) is intended for spa and hot tub owners, service technicians, and pool retailers who need a reliable, cost-effective replacement that matches common Teleweir 35 SF cartridges. Choose this two-pack when you want improved debris capture, measured fitment for Teleweir-style housings, and NSF-tested performance without changing your system plumbing or pump settings.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these Tier1 cartridges compatible with Pleatco PWW35L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — these Tier1 cartridges are designed to replace Pleatco PWW35L and other listed cross-reference part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace or clean these filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean monthly or when pressure rises; replace annually or sooner if damaged or heavily fouled.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56834744320340,"sku":"B07GSJHY29","price":103.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-filter-2pk.jpg?v=1787053265"},{"product_id":"tier1-spa-filter-cartridge-replacement-for-waterway-teleweir-35-sf-2-pack-high-flow-trilobal-media","title":"Tier1 Spa Filter Cartridge Replacement for Waterway Teleweir 35 SF - 2-Pack, High-Flow Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 replacement cartridges for the Waterway Teleweir 35 SF provide a direct, high-flow swap that restores spa filtration and captures more debris without reducing circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Tier1 twin-pack filter cartridges are designed as drop-in replacements for a wide range of Teleweir-style spa filters. Built to match the 9-1\/4\" x 4-15\/16\" footprint and fitted with a reinforced core, they help preserve pump efficiency while removing hair, dirt, leaves and fine particles. Independently tested to NSF 50 protocols, the media and construction prioritize reliable service life and consistent water flow.\u003c\/p\u003e\n\n\u003ch3\u003eWill this Tier1 cartridge fit my existing Teleweir 35 SF housing?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridge matches the common Teleweir 35 SF dimensions and connector style for a straightforward swap. Check your filter length and diameter to confirm compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal size: 9-1\/4\" length by 4-15\/16\" diameter\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for Waterway 817-4035 and Teleweir 35 SF\u003c\/li\u003e\n  \u003cli\u003eAlso fits Pleatco PWW35L, Unicel 4CH-935 and listed equivalents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the filtration media perform compared with standard filters?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 cartridge uses trilobal fiber media that increases particle capture surface area versus round fibers. That geometry traps more debris while preserving flow, helping maintain pump and heater performance under normal spa conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal dirt-lock fibers capture up to 40% more debris than standard round fibers\u003c\/li\u003e\n  \u003cli\u003eDesigned to catch hair, leaves, body oils and fine particulates\u003c\/li\u003e\n  \u003cli\u003eMedia engineered to resist compaction and preserve circulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill using these cartridges affect pump or heater operation?\u003c\/h3\u003e\n\u003cp\u003eNo — these cartridges are built around a high-flow internal core to deliver steady circulation without restricting pressure. Proper flow reduces strain on pumps and avoids the flow-related heater shutdowns that can happen with poorly designed replacements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow core maintains consistent water movement\u003c\/li\u003e\n  \u003cli\u003eReinforced construction resists collapse under normal system pressures\u003c\/li\u003e\n  \u003cli\u003eHelps protect pump longevity by avoiding restrictive flow losses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these Tier1 filters durable and safe for spa systems?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridges have undergone independent testing to NSF 50 standards for filtration performance and durability. The materials and assembly are selected for repeated wet\/dry cycles typical in spa environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested to NSF 50 protocols for reliable performance\u003c\/li\u003e\n  \u003cli\u003eRobust end caps and core for long service life\u003c\/li\u003e\n  \u003cli\u003eSold in a convenient 2-pack to simplify scheduled replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These Tier1 replacement cartridges are intended for spa owners and service professionals who need a dependable, drop-in alternative to Teleweir 35 SF filters. They suit anyone seeking improved debris capture without sacrificing flow — ideal for routine maintenance, seasonal refreshes, or stocking replacement filters for multiple spa units.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this cartridge replace Waterway 817-4035?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This Tier1 cartridge is a direct replacement for Waterway 817-4035 and Teleweir 35 SF models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these spa filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace every 3–12 months depending on spa usage, bather load, and water quality. Inspect monthly for heavy debris.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56834769191252,"sku":"B07GSGQ98W","price":100.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-teleweir-35sf.jpg?v=1787053421"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-hayward-c1200-120-sq-ft-trilobal-media-23-5-16-x-8-15-16","title":"Tier1 Pool Filter Cartridge Replacement for Hayward C1200, 120 sq ft Trilobal Media, 23-5\/16\" x 8-15\/16\"","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Hayward C1200 Pool Filter Cartridge is a 120 sq ft, trilobal-media cartridge designed to fit C1200-style housings and provide improved debris capture, durability, and easy rinsing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you own a pool that uses a C1200 or similar cartridge filter, this Tier1 replacement offers a cost-effective alternative built to increase surface area and resist collapse. It matches common C1200 dimensions (23-5\/16\" x 8-15\/16\") so installation is simple, and the reinforced pleats and trilobal fiber structure aim to hold more dirt between cleanings. This description explains what the cartridge does, how it compares to OEM parts, cleaning tips, and who benefits most from choosing this model.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge improve filtration compared to standard round-fiber cartridges?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 cartridge uses trilobal media—three-lobed fibers that create more surface area and capture a wider range of particle sizes than ordinary round fibers. That design helps maintain flow longer and can reduce the frequency of deep cleanings during a season. The pleats are flat-bonded, which keeps them open under pressure and reduces the chance of collapse.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTrilobal fibers increase effective filter area and particle trapping\u003c\/li\u003e\n\u003cli\u003eFlat-bonded pleats resist tearing and maintain shape under load\u003c\/li\u003e\n\u003cli\u003eImproved flow retention between rinses compared with basic cartridges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich pool systems and models will this cartridge fit?\u003c\/h3\u003e\n\u003cp\u003eThis replacement is sized and built for C1200-style housings and lists compatibility with many common OEM part numbers. It’s intended as a drop-in substitute for the Hayward C1200 and equivalent cartridges from Filbur, Pleatco, Unicel, Clearwater II and other brands. Always verify dimensions before ordering to ensure a snug, leak-free fit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasured dimensions: 23-5\/16\" height x 8-15\/16\" outer diameter\u003c\/li\u003e\n\u003cli\u003eCompatible references: Hayward C1200, Star-Clear Plus C1200\/CX1200RE\u003c\/li\u003e\n\u003cli\u003eAlso fits: Filbur FC-1293, Pleatco PA120, Unicel C-8412\/C-1200 and others\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is maintenance, and how long does each cartridge last?\u003c\/h3\u003e\n\u003cp\u003eRoutine maintenance is straightforward: remove the cartridge, spray with fresh water, and allow to dry before reinstalling. With light to moderate pool use and regular rinsing, many users get up to three months of service per cartridge. For heavy use or very dirty water, more frequent rinsing or replacement will be necessary to keep pump efficiency high.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRinse with garden hose between uses; deeper soak-cleaning as needed\u003c\/li\u003e\n\u003cli\u003eTypical lifespan: up to 3 months with normal seasonal use\u003c\/li\u003e\n\u003cli\u003eReplace sooner if pleats show collapse, shredding, or reduced flow\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes this Tier1 replacement a practical choice for pool owners?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge balances performance and value: it adds improved filtration media and reinforced construction at a lower price than many OEM options. It’s especially useful for new pool owners, budget-conscious buyers, or anyone who wants a ready replacement that increases debris-holding capacity without requiring modifications to the filter housing. The design supports easy handling and storage between seasons.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCost-effective alternative to higher-priced OEM cartridges\u003c\/li\u003e\n\u003cli\u003eDurable construction helps avoid frequent emergency replacements\u003c\/li\u003e\n\u003cli\u003eSingle-cartridge design fits common C1200 systems for quick swaps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners with C1200 or similar cartridge filters who want a reliable, reinforced replacement that boosts debris capture and maintains flow. It’s a good fit for residential pools with light to moderate bather load, seasonal use, or anyone looking to stretch maintenance intervals while keeping filtration effective. Verify your housing dimensions and compatible part numbers before purchase to ensure proper fit and performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this cartridge a direct replacement for Hayward C1200?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It matches the C1200 dimensions and fits housings that accept Hayward C1200-style cartridges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace the cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse after each visible debris build-up; expect up to three months of use with normal seasonal maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56834769912148,"sku":"B00FW0SPVE","price":140.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-view-cartridge_fd71b238-a66b-42ef-a81f-449fa9889e62.jpg?v=1787053440"},{"product_id":"tier1-spa-filter-cartridge-replacement-for-waterway-817-0050-2-pack-trilobal-high-flow-7-5-8-x-6","title":"Tier1 Spa Filter Cartridge Replacement for Waterway 817-0050 — 2-Pack, Trilobal High-Flow 7-5\/8\" x 6\"","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Waterway Spa Filter 817-0050 (2pk) is a direct-fit pleated spa cartridge engineered to trap fine debris while preserving steady water circulation in compatible front-access skimmer systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned as a direct replacement for Waterway 817-0050 and cross-compatible with popular part numbers (Pleatco PWW50, Filbur FC-0359, Unicel 6CH-940 and others), this two-pack offers dependable filtration for spas and hot tubs that use front-access skimmer cartridges. The cartridge measures 7-5\/8\" x 6\" and uses trilobal dirt-lock fibers with an engineered high-flow core to balance filtration efficiency and pump protection.\u003c\/p\u003e\n\n\u003ch3\u003eWill this Tier1 cartridge fit my Waterway front-access skimmer?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridge is dimensioned and shaped to fit standard Waterway front-access skimmer housings that call for the 817-0050 style cartridge. Check your skimmer opening and core diameter to confirm fit before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 7-5\/8\" height x 6\" outer diameter for reliable seating\u003c\/li\u003e\n  \u003cli\u003eCompatible part cross-references included for quick comparison\u003c\/li\u003e\n  \u003cli\u003eDesigned to prevent leaks and gaps when properly installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal media improve filtration versus ordinary cartridges?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses trilobal-shaped fibers that increase surface area and mechanical trapping capability versus round fibers. That geometry captures more hair, fine debris and suspended particles while still allowing water to pass through with less resistance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal dirt-lock media captures up to 40% more debris than standard round-fiber filters\u003c\/li\u003e\n  \u003cli\u003eMaintains higher dirt-holding capacity so cartridges last longer between cleanings\u003c\/li\u003e\n  \u003cli\u003eOptimized to retain flow and reduce strain on pumps and heaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes this replacement affect pump performance or water flow?\u003c\/h3\u003e\n\u003cp\u003eNo — the internal high-flow core is engineered to deliver steady circulation while filtering effectively. It reduces the chance of flow restriction that can stress pumps or reduce heater efficiency when compared with poorly designed cartridges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core supports consistent water movement\u003c\/li\u003e\n  \u003cli\u003eBalanced media-to-core ratio prevents excessive pressure drop\u003c\/li\u003e\n  \u003cli\u003eHelps maintain pump and heater operation when cartridges are clean\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Tier1 cartridge tested for quality and durability?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge has been tested to NSF 50 protocols for performance and durability, providing independent verification that it meets recognized filtration standards for spa and hot-tub applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNSF 50–tested to confirm filtration performance benchmarks\u003c\/li\u003e\n  \u003cli\u003eManufactured to consistent dimensions to ensure repeatable fit\u003c\/li\u003e\n  \u003cli\u003eSold as a two-pack for convenient replacement scheduling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Spa owners, maintenance technicians, and hot-tub retailers seeking a reliable, cost-effective replacement for Waterway 817-0050 style cartridges will find this Tier1 2-pack useful. It’s ideal for systems that prioritize steady flow and improved debris capture without modifying plumbing or skimmer housings. Choose this cartridge if you want an NSF-tested alternative compatible with many common part numbers and sized for front-access skimmers.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this fit my Waterway 817-0050 skimmer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The cartridge measures 7-5\/8\" x 6\" and is designed as a direct replacement for Waterway 817-0050 style front-access skimmers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace or clean these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean cartridges every 4–6 weeks under typical use; replace when pleats show permanent discoloration, damage, or reduced flow despite cleaning.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56834770108756,"sku":"B07GSCC9D8","price":102.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-access-packaging.jpg?v=1787053444"},{"product_id":"tier1-replacement-pool-filter-cartridge-for-sta-rite-ptm70-18-3-16-x-8-11-16-trilobal-media-high-flow-core","title":"Tier1 Replacement Pool Filter Cartridge for Sta-Rite PTM70 — 18-3\/16\" x 8-11\/16\" Trilobal Media, High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Sta-Rite PTM70 is a drop-in pool and spa filter cartridge engineered with trilobal dirt-lock media and an internal high-flow core to trap more debris while maintaining steady circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement cartridge is built to match the sizing and performance of Sta-Rite PTM70-series cartridges, giving pool owners a cost-effective alternative that fits the same housings and plumbing. It uses a specially shaped fiber structure to capture a larger volume of fine particles and organic debris without sacrificing water flow. Independently tested to NSF 50 protocols, the cartridge balances filtration efficiency with durability for regular pool maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge capture more debris than standard filters?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses trilobal-shaped fibers instead of traditional round fibers, increasing the surface area and mechanical trapping ability. That structure catches finer particles and hair while maintaining open channels for water movement, which reduces frequent clogging.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal dirt-lock media captures up to 40% more debris versus round fibers\u003c\/li\u003e\n  \u003cli\u003eDepth-layered pleats trap both coarse and fine contaminants\u003c\/li\u003e\n  \u003cli\u003eTextured fiber surfaces hold particles until cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my Sta-Rite PTM70 or equivalent housing?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 cartridge measures 18-3\/16\" tall by 8-11\/16\" outer diameter, designed as a direct replacement for PTM70 and compatible cross-reference models. It installs in the same housings and uses the same sealing geometry to help prevent leaks and ensure a snug fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions engineered for a seamless replacement fit\u003c\/li\u003e\n  \u003cli\u003eCompatible with listed cross-reference models like Pleatco, Filbur, Unicel\u003c\/li\u003e\n  \u003cli\u003eSame endcap geometry for proper sealing and alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the cartridge affect pump performance and flow?\u003c\/h3\u003e\n\u003cp\u003eAn internal high-flow core maintains steady circulation while the pleated media filters out contaminants, preventing excessive backpressure that can strain pumps or heaters. This design aims to preserve system efficiency so the pump runs within expected parameters longer between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core supports consistent water circulation\u003c\/li\u003e\n  \u003cli\u003ePleat spacing optimized to balance filtration and flow\u003c\/li\u003e\n  \u003cli\u003eReduces pressure spikes that can impact pump wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat testing and durability standards does this replacement meet?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge has been evaluated under NSF 50 testing protocols for pool and spa equipment, offering an independent performance assessment. Construction materials and pleat integrity are selected to resist collapsing and to withstand repeated cleanings common in seasonal maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested to NSF 50 standards for filtration performance\u003c\/li\u003e\n  \u003cli\u003eDurable pleat and endcap construction for routine use\u003c\/li\u003e\n  \u003cli\u003eEngineered to resist flow restriction during normal service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tier1 Replacement for Sta-Rite PTM70 is ideal for pool and spa owners, service technicians, and property managers seeking a reliable, high-capacity cartridge that fits PTM70-compatible housings. Choose this cartridge if you want improved fine-particle capture, stable pump performance between cleanings, and a cost-effective alternative to OEM cartridges that meets recognized testing standards.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this a direct replacement for Sta-Rite PTM70?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Tier1 cartridge matches PTM70 dimensions and fits equivalent housings listed in the cross-reference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace this cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean frequency depends on pool use; inspect monthly and replace when pleats show wear or flow is noticeably reduced.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56834770796884,"sku":"B00FW0SIIY","price":115.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-stacked.jpg?v=1787053458"},{"product_id":"tier1-spa-filter-cartridge-replacement-for-maax-spas-8-x-5-5-8-2-pack-high-flow-trilobal","title":"Tier1 Spa Filter Cartridge Replacement for Maax Spas 8 x 5-5\/8 (2-Pack) High-Flow Trilobal","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Maax Spas Filter Cartridge (2-Pack) is an 8\" x 5-5\/8\" high-flow spa filter built with trilobal dirt-lock media to capture more debris while maintaining steady circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your spa water clear and your circulation system running efficiently with this two-pack of replacement cartridges designed as direct-fit alternatives for Maax Spas models that accept Pleatco PAS35P-style filters. These Tier1 cartridges match common OEM dimensions and use a multi-fiber trilobal media that traps fine particles without choking off flow. They are independently tested to NSF\/ANSI 50 protocols for performance and durability and include an internal high-flow core engineered to protect pumps and heaters from strain.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve water clarity without reducing pump performance?\u003c\/h3\u003e\n\n\u003cp\u003eThe trilobal dirt-lock fibers are shaped to provide greater surface area and particle capture than standard round fibers, so the cartridge holds more debris while letting water pass freely. The internal core and pleat spacing are optimized to maintain high flow even as the element collects contaminants, which reduces stress on your spa pump and heater.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTrilobal fiber design captures more fine particles than round fibers\u003c\/li\u003e\n  \u003cli\u003eHigh-flow internal core sustains steady circulation under load\u003c\/li\u003e\n  \u003cli\u003ePleat depth and spacing balance dirt capacity with unrestricted water movement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich spa models and filter part numbers is this cartridge compatible with?\u003c\/h3\u003e\n\n\u003cp\u003eThis 8\" x 5-5\/8\" Tier1 cartridge is built to fit a wide range of spas that use PAS35P-style elements. It serves as a replacement for several common OEM and aftermarket part numbers, making it a convenient swap for many owners.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect replacements include Pleatco PAS35P and PAS35P4\u003c\/li\u003e\n  \u003cli\u003eCompatible with PMAX50 and PMAX50-P4 style cartridges\u003c\/li\u003e\n  \u003cli\u003eAlso fits Filbur FC-0300, Unicel 5CH-35, and SD-00779 applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat dimensions and build features ensure a reliable fit and lifespan?\u003c\/h3\u003e\n\n\u003cp\u003eThe cartridge measures 8 inches tall with a 5-5\/8 inch outer diameter, matching industry-standard dimensions for this filter family. Rugged construction and tested materials help resist collapse and tearing, while the pleated media layout increases usable surface area for longer service intervals.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePrecise 8\" x 5-5\/8\" dimensions for secure seating in compatible housings\u003c\/li\u003e\n  \u003cli\u003eDurable pleat pack resists deformation under normal spa conditions\u003c\/li\u003e\n  \u003cli\u003eEngineered end caps and core maintain integrity through repeated cleanings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this filter certified and how should I maintain it for best results?\u003c\/h3\u003e\n\n\u003cp\u003eThe cartridge has been independently tested to NSF\/ANSI 50 standards for spa and pool equipment, demonstrating performance and durability under test protocols. To extend life and performance, rinse the pleats regularly with a hose, use a filter-cleaning solution periodically, and replace the cartridge according to your spa manufacturer’s maintenance schedule or when pressure rise and flow drop noticeably.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNSF\/ANSI 50 tested for performance and durability\u003c\/li\u003e\n  \u003cli\u003eRoutine rinsing and periodic chemical cleaning preserves filtration efficiency\u003c\/li\u003e\n  \u003cli\u003eReplace when flow decreases or pleats show wear and staining\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Spa owners who want a cost-effective, high-capacity replacement that fits Pleatco PAS35P-style housings and similar models will find this Tier1 two-pack useful. It’s aimed at people who prioritize steady water circulation, improved debris capture, and compatibility with common Maax Spas and aftermarket part numbers. If you perform regular maintenance and want NSF-tested filtration that balances dirt-holding with pump protection, this cartridge pair is a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these filters compatible with my Maax Spa?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit spas that accept PAS35P-style cartridges, including Pleatco PAS35P, PMAX50, Filbur FC-0300, Unicel 5CH-35, and similar models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace when you notice reduced flow or visible wear; routine rinsing and periodic chemical cleaning can extend service life.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56837466128724,"sku":"B07GSD2MMS","price":105.53,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-replacement-filter-2pack.jpg?v=1787059787"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-pentair-pwk30-3-pack-trilobal-media-high-flow-core","title":"Tier1 Pool Filter Cartridge Replacement for Pentair PWK30 – 3-Pack, Trilobal Media, High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Pentair PWK30 Pool Filter Cartridge (3pk) is a direct-fit replacement cartridge engineered to restore clear pool water by capturing fine debris while maintaining steady flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool filter uses the Pentair PWK30 or equivalent cartridges and you want a reliable, NSF-tested replacement, this Tier1 three-pack provides an easy swap that matches the original dimensions and improves particle capture. Designed to replace common OEM part numbers from Watkins, Filbur, Unicel, Pleatco and others, these cartridges combine a high-flow inner core with trilobal dirt-lock media to help keep your pump running efficiently and your water clearer between cleanings.\u003c\/p\u003e\n\n\u003ch3\u003eWill this Tier1 cartridge fit my existing PWK30 system?\u003c\/h3\u003e\n\u003cp\u003eYes — the Tier1 cartridge is built to the same dimensional standards as the PWK30 family so it installs without modification in compatible filter housings. Double-check your current cartridge model numbers against the listed cross-references to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 10-1\/2\" height x 6\" diameter for correct seating and seal\u003c\/li\u003e\n  \u003cli\u003eCompatible cross-references: Watkins 31489, Filbur FC-3915, Unicel C-6330\/C-6430 series\u003c\/li\u003e\n  \u003cli\u003eWorks with Pleatco PWK30, PWK30-M, PWK30-4 and other listed P\/Ns\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal dirt-lock media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eTrilobal fibers have a three-sided profile that increases surface contact and mechanical entrapment of particles, so the Tier1 media captures more debris than standard round fibers without sacrificing flow. That means finer contaminants like hair and silt are held in the pleats rather than recirculating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUp to 40% more debris capture versus round-fiber cartridges\u003c\/li\u003e\n  \u003cli\u003ePleated design increases usable surface area for longer service intervals\u003c\/li\u003e\n  \u003cli\u003eHelps maintain water clarity while allowing steady pump flow\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Tier1 cartridge durable and safe for my pool equipment?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges are tested to NSF 50 standards for performance and durability, providing independent verification of consistent filtration under typical pool conditions. An engineered inner high-flow core prevents collapse and supports continuous circulation without causing undue pressure strain on the pump or heater.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNSF 50-tested for performance and structural integrity\u003c\/li\u003e\n  \u003cli\u003eHigh-flow internal core preserves circulation and pump efficiency\u003c\/li\u003e\n  \u003cli\u003eRobust end caps and bonded pleats resist damage from handling and cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I maintain these replacement cartridges for best results?\u003c\/h3\u003e\n\u003cp\u003eRegular rinsing and periodic deep cleaning extend cartridge life and sustain filtration performance. Follow your pool manufacturer’s recommended maintenance schedule and inspect the pleats for tears or compression to know when replacement is needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse weekly with a hose to dislodge surface debris\u003c\/li\u003e\n  \u003cli\u003eUse a cartridge cleaner or mild diluted solution seasonally for deep cleaning\u003c\/li\u003e\n  \u003cli\u003eReplace when pleats show permanent compression, tearing, or diminished flow\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tier1 Replacement for Pentair PWK30 Pool Filter Cartridge (3pk) is ideal for pool owners and maintenance pros who need a cost-effective, NSF-tested spare supply that matches popular OEM part numbers. If you want dependable filtration that captures finer debris, preserves pump performance, and fits common PWK30-compatible housings, this three-pack offers ready replacements to shorten downtime and keep circulation operating smoothly.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this Tier1 cartridge fit Pentair PWK30 models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It matches PWK30 dimensions and cross-references common OEM numbers like Filbur FC-3915 and Unicel C-6330.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace when pleats are compressed or damaged; typical life depends on pool use and maintenance, often one season to multiple seasons.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56839773126996,"sku":"B07GSL6D3Z","price":125.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-pwk30-front-view.jpg?v=1787068416"},{"product_id":"tier1-spa-filter-replacement-for-waterway-817-4050-4-pack-high-flow-pleated-cartridges","title":"Tier1 Spa Filter Replacement for Waterway 817-4050 — 4-Pack High-Flow Pleated Cartridges","description":"\u003cstrong\u003eTier1 Replacement for Waterway Spa Filter 817-4050 (4pk) is a direct-fit replacement cartridge designed to restore clear, well-circulated spa water by trapping fine debris while maintaining strong flow.\u003c\/strong\u003e\n\n\u003cp\u003eIf your spa uses Waterway-style cartridges and you need reliable filtration without the hassle of custom sizing, this four-pack from Tier1 gives you ready-to-install replacements engineered for compatibility and performance. These cartridges match the common Waterway 817-4050 form factor and comparable aftermarket part numbers so they slide into existing filter housings with no modification. Built with a high-flow internal core and advanced pleated media, they balance filtration efficiency and pump protection for everyday spa use.\u003c\/p\u003e\n\n\u003ch3\u003eWill these cartridges fit my Waterway 817-4050 or equivalent filter housing?\u003c\/h3\u003e\n\u003cp\u003eYes — the Tier1 cartridges are sized to match the typical Waterway 817-4050 profile so they fit most compatible housings. Verify your existing cartridge dimensions before ordering to ensure exact compatibility.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOverall length: 13-1\/16 inches for proper seating.\u003c\/li\u003e\n\u003cli\u003eOuter diameter: 5 inches to match standard housings.\u003c\/li\u003e\n\u003cli\u003eCompatible cross-reference numbers: Teleweir 50, Pleatco PWW50L series, Filbur FC-0172, Unicel 4CH-949 and others.\u003c\/li\u003e\n\u003cli\u003eSold as a 4-pack to replace multiple units at once.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the filter media capture dirt while keeping flow steady?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges use trilobal-shaped fibers rather than simple round fibers, which increases surface contact and particle capture without overly restricting water movement. The pleated construction provides large surface area and the supported internal core lets water pass through freely to your pump and heater.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTrilobal dirt-lock fibers trap more fine particles, hair, and debris.\u003c\/li\u003e\n\u003cli\u003ePleated design increases filtration area for longer run times between cleanings.\u003c\/li\u003e\n\u003cli\u003eHigh-flow internal core protects pump performance and reduces pressure drops.\u003c\/li\u003e\n\u003cli\u003eEngineered to balance cleanliness and consistent circulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these cartridges tested for durability and performance?\u003c\/h3\u003e\n\u003cp\u003eTier1 cartridges are independently evaluated to industry filtration protocols to verify performance and robustness. That testing helps ensure the cartridges hold pleat shape, resist premature collapse, and deliver expected water clarity under typical spa conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndependently tested to NSF 50-related protocols for performance benchmarks.\u003c\/li\u003e\n\u003cli\u003eConstructed to resist distortion and maintain consistent filtration over service life.\u003c\/li\u003e\n\u003cli\u003eDesigned to avoid leakage or gaps that reduce effectiveness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I benefit from buying a four-pack versus single cartridges?\u003c\/h3\u003e\n\u003cp\u003eBuying a four-pack gives you immediate spares for staggered replacement schedules and reduces the frequency of repeat orders. It’s economical for homeowners who maintain multiple spas or prefer to swap all cartridges at once during seasonal service.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFour cartridges in one purchase for convenience and value.\u003c\/li\u003e\n\u003cli\u003eKeep one spare on hand to avoid downtime during replacements.\u003c\/li\u003e\n\u003cli\u003eIdeal for multi-spa properties or scheduled full-filter changes.\u003c\/li\u003e\n\u003cli\u003eConsistent filter media across replacements for predictable performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Homeowners, property managers, and spa technicians who use Waterway 817-4050 or cross-referenced filter housings and want a dependable, easy-to-install replacement that improves particle capture without sacrificing circulation. Choose Tier1 when you need a pack of premium, dimension-matched cartridges to maintain water clarity and protect spa equipment between cleanings.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these replace Waterway part 817-4050 exactly?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—these Tier1 cartridges match the 13-1\/16\" x 5\" dimensions and are compatible with Waterway 817-4050 and many cross-reference numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace or clean these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean regularly depending on use; replace based on condition or manufacturer guidance, typically every 6–12 months for residential spas.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56839773225300,"sku":"B07GSJ7453","price":141.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-waterway-817-4050.jpg?v=1787068418"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-pentair-r173214-2-pack-trilobal-high-flow-nsf-50-tested","title":"Tier1 Pool Filter Cartridge Replacement for Pentair R173214 2-Pack — Trilobal High-Flow, NSF-50 Tested","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Pentair R173214 is a direct-fit 2-pack pool filter cartridge engineered with trilobal dirt-lock media to capture more debris while preserving steady water flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool uses a Clean \u0026amp; Clear 75 or similar filter housing, these Tier1 cartridges deliver a reliable, drop-in replacement sized to the same specifications as Pentair R173214. Built with a reinforced core and high-efficiency pleated media, they are tested to NSF 50 protocols for performance and durability. The package contains two cartridges so you can swap both filters at once and restore filtration efficiency quickly.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these cartridges improve filtration without reducing flow?\u003c\/h3\u003e\n\n\u003cp\u003eThe Tier1 design combines a high-flow internal core with trilobal synthetic fibers that trap fine particles without presenting excessive resistance to water. The pleat pattern is optimized to keep surface area high while allowing water to pass freely, protecting pumps and heaters from undue strain. Independent testing confirms consistent circulation under typical pool conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core maintains steady water circulation.\u003c\/li\u003e\n  \u003cli\u003eTrilobal fiber shape captures up to 40% more debris than round fibers.\u003c\/li\u003e\n  \u003cli\u003eOptimized pleat spacing prevents pressure spikes and flow restriction.\u003c\/li\u003e\n  \u003cli\u003eEngineered to fit existing housings for easy replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my filter housing and match Pentair R173214 dimensions?\u003c\/h3\u003e\n\n\u003cp\u003eYes — each cartridge measures 16-1\/8\" by 10-1\/16\", matching the footprint of Pentair R173214 and other listed cross-reference models. The end caps and pleat geometry are manufactured to align with common adapters and seals, delivering a leak-resistant fit. Always compare measurements before installing to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 16-1\/8\" (height) x 10-1\/16\" (diameter).\u003c\/li\u003e\n  \u003cli\u003eDesigned as a direct replacement for Pentair R173214 and equivalents.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Clean \u0026amp; Clear 75 housings and listed cross-references.\u003c\/li\u003e\n  \u003cli\u003eDrop-in installation avoids modifications or adapters in most systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance and performance can I expect from the trilobal media?\u003c\/h3\u003e\n\n\u003cp\u003eTrilobal fibers present multiple contact surfaces that trap hair, leaves, and fine particulate more effectively than traditional round fibers. This results in longer intervals between cleanings and improved clarity while preserving hydraulic performance. Routine rinsing with a hose restores most capacity; a periodic deep soak removes embedded oils and finer residues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTraps more debris for extended cleaning intervals.\u003c\/li\u003e\n  \u003cli\u003eHose-rinseable for quick upkeep; deep clean recommended occasionally.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain pump efficiency by avoiding clogged pleats.\u003c\/li\u003e\n  \u003cli\u003eDurable construction reduces need for premature replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these cartridges certified or independently tested?\u003c\/h3\u003e\n\n\u003cp\u003eTier1 cartridges have been evaluated to NSF 50-related performance protocols to verify durability and filtration characteristics relevant to recreational water. While NSF testing covers aspects of structural performance and material longevity, follow local pool regulations and maintenance schedules for operational compliance. Test results support consistent water clarity when cartridges are used and maintained as directed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 protocols for performance and durability.\u003c\/li\u003e\n  \u003cli\u003eQuality control measures ensure consistent dimensions and pleat integrity.\u003c\/li\u003e\n  \u003cli\u003eIntended to meet expectations of residential and light-commercial pools.\u003c\/li\u003e\n  \u003cli\u003eUse per manufacturer guidance for best results and longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Pool owners and service professionals who need a reliable, cost-effective replacement for Pentair R173214 and equivalent cartridges. If you want improved debris capture without sacrificing circulation, a tested alternative that fits Clean \u0026amp; Clear 75 housings, or a two-pack for synchronized filter maintenance, these Tier1 cartridges are a practical choice. Confirm measurements against your existing cartridge before purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these Tier1 cartridges a direct replacement for Pentair R173214?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They match the 16-1\/8\" x 10-1\/16\" dimensions and are designed as direct-fit replacements for Pentair R173214 and listed equivalents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean these filter cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse with a hose every 2–4 weeks under normal use; deep clean or replace annually depending on debris load and water conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56839776141652,"sku":"B07GSHZQRR","price":181.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-two-pack_75f6dcbb-fa32-45b0-81c3-4589c33a366f.jpg?v=1787068438"},{"product_id":"tier1-pool-spa-replacement-cartridge-for-hayward-star-clear-c500-2-pack-7-x-19-75-washable-pleated-filter","title":"Tier1 Pool \u0026 Spa Replacement Cartridge for Hayward Star Clear C500 — 2-Pack 7\" x 19.75\", Washable Pleated Filter","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Hayward Star Clear C500 Cartridge is a 2-pack pleated filter cartridge engineered to fit 7\" x 19¾\" pool and spa filter housings and trap debris while maintaining high water flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese replacement cartridges are built as direct-fit alternatives to popular OEM filters, offering the same dimensions and filtration area so you can restore circulation and clarity without modifying your equipment. Designed with a tight, washable pleated fabric, the Tier1 cartridges remove hair, leaves, sediment and other particulates while keeping pressure performance consistent with your original filter. Each pack contains two cartridges so you can swap, clean, or keep a spare on hand for routine maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eWill this cartridge fit my Hayward or compatible filter housing?\u003c\/h3\u003e\n\u003cp\u003eYes — the Tier1 cartridge matches the common OEM size used by many manufacturers. Confirm your filter requires a cartridge with a 7-inch outside diameter and 19 3\/4-inch length before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 7\" outside diameter × 19.75\" length.\u003c\/li\u003e\n  \u003cli\u003eCross-compatible replacements: Hayward Star Clear C500, Filbur FC-1240, Pleatco PA50, Unicel C-7656, and others.\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct installation in housings that accept the listed part numbers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow effectively does the Tier1 cartridge remove debris?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses dense pleated fabric to increase surface area and capture more particles without drastically reducing flow. The washable material can be rinsed and reused multiple times, extending the life between full replacements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMedia area: approximately 50 square feet of pleated fabric for added dirt-holding capacity.\u003c\/li\u003e\n  \u003cli\u003ePore structure: tight porosity captures sand, dirt, leaves, and hair.\u003c\/li\u003e\n  \u003cli\u003eMaintenance: rinse with a hose; replace when pressure rise indicates reduced performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain these replacement cartridges?\u003c\/h3\u003e\n\u003cp\u003eInstallation mirrors the OEM procedure: remove the old cartridge, drop in the replacement, and reassemble the tank. For best performance, monitor your filter’s pressure gauge and clean or replace cartridges when pressure rises significantly above the baseline reading.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstallation: direct-fit — no adapters required if your system uses the listed OEM part numbers.\u003c\/li\u003e\n  \u003cli\u003eWhen to clean: rinse periodically with a high-pressure stream; use a filter cleaner for deep cleaning.\u003c\/li\u003e\n  \u003cli\u003eWhen to replace: recommended when gauge rises about 8 psi above the initial installed pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat quality standards and features does Tier1 offer?\u003c\/h3\u003e\n\u003cp\u003eTier1 filters are manufactured to meet consistent design and material testing benchmarks so you get a reliable, value-oriented replacement. The construction emphasizes strength and flow to minimize strain on pumps while providing consistent filtration performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable filament and pleat construction for longer service life.\u003c\/li\u003e\n  \u003cli\u003eHigh-flow design to preserve pump efficiency while trapping debris.\u003c\/li\u003e\n  \u003cli\u003eCost-effective two-pack for routine swaps or backup coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you own a pool or spa that requires a 7\" x 19¾\" cartridge — particularly models that originally used Hayward Star Clear C500 or any of the compatible OEM part numbers — this Tier1 2-pack is intended for you. It fits homeowners, pool service technicians, and property managers seeking an affordable, reliable replacement that restores filtration performance and simplifies maintenance without changing existing plumbing or housings.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these cartridges washable and reusable?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the pleated fabric is washable. Rinse with a pressure hose and perform deeper cleaning as needed; replace when pressure increases significantly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these filters fit my Hayward C500?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — they are direct replacements for Hayward Star Clear C500 and many equivalent OEM part numbers if your housing accepts 7\" × 19.75\" cartridges.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56839954071892,"sku":"B07D957M35","price":156.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging_1c8797be-27d0-4d6d-99b3-3e6f6b995e35.jpg?v=1787068835"},{"product_id":"tier1-spa-filter-replacement-for-dimension-one-1561-00-4-pack-high-flow-trilobal-media-nsf-50-tested","title":"Tier1 Spa Filter Replacement for Dimension One 1561-00 (4-pack) — High-Flow Trilobal Media, NSF-50 Tested","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement Dimension One 1561-00 spa filter (4-pack) is a direct-fit, high-flow replacement cartridge designed to trap more debris while maintaining steady water circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your spa water clearer and your circulation system running smoothly with this Tier1 four-pack filter engineered as a direct replacement for Dimension One 1561-00 and many equivalent models. Built with trilobal dirt-lock media and a reinforced high-flow core, these cartridges capture fine particles without choking flow or stressing the pump. Each cartridge is independently tested to NSF 50 performance standards, and the standard 10-1\/2\" x 7-1\/8\" dimensions ensure a reliable fit across a wide range of compatible filtration systems.\u003c\/p\u003e\n\n\u003ch3\u003eWill this filter fit my spa model?\u003c\/h3\u003e\n\u003cp\u003eYes — the Tier1 cartridge is made to match the exact dimensions and form of common OEM parts, so it installs like the original. Check your existing cartridge size and compatible part numbers to confirm fit before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for Dimension One 1561-00 and listed cross-references (Pleatco PDO75-2000, Filbur FC-3059, Unicel C-7367, and more)\u003c\/li\u003e\n  \u003cli\u003eStandard size: 10-1\/2\" height x 7-1\/8\" outer diameter\u003c\/li\u003e\n  \u003cli\u003eEngineered to seat securely in most compatible spa filter housings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the trilobal media improve filtration?\u003c\/h3\u003e\n\u003cp\u003eThe trilobal fiber profile increases surface area and forms more effective dirt-lock pockets compared with round fibers. That design captures finer debris such as hair and suspended particles while still preserving water flow through the cartridge.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUp to 40% more debris capture vs. traditional round-fiber cartridges\u003c\/li\u003e\n  \u003cli\u003eGranular and fibrous contaminants are trapped in the media layers\u003c\/li\u003e\n  \u003cli\u003eMaintains higher flow rates to reduce stress on pumps and heaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes using this filter affect pump or heater performance?\u003c\/h3\u003e\n\u003cp\u003eNo — the Tier1 replacement is engineered with an internal high-flow core to support steady circulation without creating undue backpressure. That helps preserve pump efficiency and avoids common flow restrictions that can cause heater shutdowns or reduced performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core balances debris capture with consistent water movement\u003c\/li\u003e\n  \u003cli\u003eReduces the chance of pressure spikes that strain pumps\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard spa plumbing and heater systems when installed correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will each cartridge last and how should I maintain them?\u003c\/h3\u003e\n\u003cp\u003eService life depends on spa use, water quality, and maintenance practices, but regular cleaning extends effective life. Rinse and soak cartridges on a schedule, replace when fibers show wear or dirt no longer rinses clear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse weekly under low-pressure water and deep-clean monthly with filter cleaner\u003c\/li\u003e\n  \u003cli\u003eReplace cartridges every 6–12 months or sooner for heavy-use spas\u003c\/li\u003e\n  \u003cli\u003eInspect for torn pleats, compressed media, or stubborn staining before reuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tier1 Replacement Dimension One 1561-00 4-pack is ideal for spa owners seeking an affordable, reliable OEM-fit cartridge that boosts debris capture without sacrificing circulation. It suits homeowners with regular spa use, professional service technicians stocking replacement parts, and anyone who wants NSF-tested performance and a straightforward drop-in swap for popular OEM filters.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this filter compatible with my Dimension One spa?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it directly replaces Dimension One 1561-00 and many cross-referenced models; verify the 10-1\/2\" x 7-1\/8\" dimensions to confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace every 6–12 months depending on use and water conditions; clean regularly to extend life and check for wear before reuse.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56840094941524,"sku":"B07BQHFGYJ","price":178.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging-replacement-filter_85f55a66-6aec-4b82-9e31-f04b349611e4.jpg?v=1787069032"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-pentair-ccp520-32-1-16-x-7-high-flow-trilobal-media","title":"Tier1 Pool Filter Cartridge Replacement for Pentair CCP520 — 32-1\/16\" x 7\", High-Flow Trilobal Media","description":"\u003cp\u003e\u003cstrong\u003eTier1 Replacement for Pentair CCP520 is a 32-1\/16\" x 7\" high-flow pool filter cartridge using trilobal dirt-lock media to trap more debris while preserving consistent water circulation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pool or spa uses Pentair Clean \u0026amp; Clear 520 or any of its compatible equivalents, this Tier1 replacement cartridge gives you a like-for-like fit with upgraded fiber technology. Built to match common OEM dimensions and tested to NSF 50 protocols, it balances capture efficiency and steady flow so your pump and heater run smoothly without excessive pressure spikes. The cartridge’s construction focuses on long-term durability and consistent performance during the swimming season.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge fit my existing Pentair Clean \u0026amp; Clear 520 system?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 cartridge is manufactured to the same external dimensions as the Pentair CCP520 and other cross-reference part numbers, ensuring a reliable, leak-free fit in compatible housings. It uses standard end caps and a central core designed to seat securely for everyday filtration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact dimensions: 32-1\/16\" height x 7\" diameter for correct sealing\u003c\/li\u003e\n  \u003cli\u003eCompatible with many cross-references: Pleatco PCC130, Filbur FC-1978, Unicel C-7472, and more\u003c\/li\u003e\n  \u003cli\u003eEngineered end caps and core for a snug installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes trilobal dirt-lock media better than standard fibers?\u003c\/h3\u003e\n\u003cp\u003eTrilobal fibers have a three-lobed cross-section that increases surface area and mechanical entrapment, catching more fine particles without clogging as quickly as some round-fiber cartridges. The design improves dirt-holding capacity while maintaining water throughput.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCaptures up to 40% more debris versus standard round fibers\u003c\/li\u003e\n  \u003cli\u003eTraps hair, leaves, sand, and fine particulates effectively\u003c\/li\u003e\n  \u003cli\u003eHelps preserve flow so pumps operate efficiently\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge affect pump performance or heater function?\u003c\/h3\u003e\n\u003cp\u003eNo — the Tier1 replacement includes an internal high-flow core that encourages steady circulation and avoids large pressure increases that can stress pumps or limit heater effectiveness. It’s built to balance filtration efficiency and hydraulic performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow core supports consistent water circulation\u003c\/li\u003e\n  \u003cli\u003eReduces likelihood of pressure spikes that can trigger maintenance\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard pool plumbing and pump setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the cartridge tested for reliability and safety?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge has been tested to NSF 50 standards for pool and spa equipment, indicating it meets independent performance and durability benchmarks. Regular inspection and cleaning help maintain those results season after season.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndependently tested to NSF 50 protocols\u003c\/li\u003e\n  \u003cli\u003eDurable construction for repeated cleanings and reuses\u003c\/li\u003e\n  \u003cli\u003eDesigned for consistent water clarity when used properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners, service technicians, and facility managers who need a dependable, OEM-compatible replacement for Pentair Clean \u0026amp; Clear 520 and equivalent cartridges. It’s ideal if you want improved particle capture without sacrificing flow, need a precise 32-1\/16\" x 7\" fit, or prefer a cartridge tested to industry standards. Choose this Tier1 filter when you expect regular pool use, want to protect pump and heater equipment, and value easy replacement with proven filtration media.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this cartridge fit my Pentair Clean \u0026amp; Clear 520 housing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It measures 32-1\/16\" x 7\" and is made to match the Pentair CCP520 fit and common cross-reference models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace this cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean on a regular schedule depending on use; replace when pleats show wear or filtration noticeably declines.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56840595571028,"sku":"B00FW0V0UM","price":128.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-packaging_0f79e224-f479-4513-99a8-873ed9846c7e.jpg?v=1787072070"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-pentair-r173215-23-5-8in-trilobal-media-high-flow-core","title":"Tier1 Pool Filter Cartridge Replacement for Pentair R173215 — 23-5\/8in Trilobal Media, High-Flow Core","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Pentair R173215 is a 23-5\/8\" x 10-1\/16\" trilobal-fiber pool filter cartridge engineered to fit Pentair Clean \u0026amp; Clear 100-style housings and capture up to 40% more debris while keeping consistent flow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Tier1 cartridge is designed as a direct-fit replacement for Pentair R173215 and compatible models, offering an economical option for restoring filtration performance. Built with trilobal dirt-lock media and a reinforced high-flow core, it balances particle capture and hydraulic efficiency so pumps and heaters operate as intended. The cartridge is independently tested to NSF 50 protocols for performance and durability, giving you confidence in a reliable, long-lasting replacement part.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge match my Pentair R173215 or Clean \u0026amp; Clear 100 system?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 replacement mirrors the critical dimensions and end-cap geometry of the Pentair R173215 family, so it installs without modification in most Clean \u0026amp; Clear 100-style filter housings. It is compatible with numerous OEM equivalents listed for quick cross-referencing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact dimensions: 23-5\/8\" length by 10-1\/16\" outer diameter.\u003c\/li\u003e\n  \u003cli\u003eDesigned for housings accepting Pentair R173215 and equivalent cartridges.\u003c\/li\u003e\n  \u003cli\u003eSeals and end caps engineered for leak-free seating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat filtration performance can I expect from the trilobal dirt-lock media?\u003c\/h3\u003e\n\u003cp\u003eTrilobal fibers increase surface area and create edges that trap fine particles more effectively than round fibers. The media captures common pool debris such as hair, leaves, and fine particulate matter while maintaining good flow to avoid excessive pressure spikes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUp to 40% more debris capture versus traditional round-fiber cartridges.\u003c\/li\u003e\n  \u003cli\u003eImproved dirt-release during cleaning for longer usable life.\u003c\/li\u003e\n  \u003cli\u003eConsistent water flow to protect pumps and heaters from undue restriction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge affect pump pressure or heater operation?\u003c\/h3\u003e\n\u003cp\u003eThe Tier1 cartridge includes an internal high-flow core designed to preserve circulation while delivering filtration. Proper filtration should not introduce abnormal pressure increases; follow routine cleaning intervals to keep the system operating within recommended ranges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-flow internal core minimizes backpressure under normal load.\u003c\/li\u003e\n  \u003cli\u003eMaintains steady circulation to support pump and heater efficiency.\u003c\/li\u003e\n  \u003cli\u003eRegular rinsing and periodic deep cleaning recommended to avoid buildup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and safe is the Tier1 replacement cartridge?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge was built with durability in mind and has been subjected to independent NSF 50 testing for performance and longevity. Use it as part of routine maintenance and replace when media or end caps show wear to sustain filtration quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConstructed with reinforced end caps and a sturdy core for repeated use.\u003c\/li\u003e\n  \u003cli\u003eTested to NSF 50 protocols for pool filtration performance.\u003c\/li\u003e\n  \u003cli\u003eDesigned for easy removal, cleaning, and replacement during maintenance cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners and service professionals who need a reliable, cost-effective direct replacement for Pentair R173215 and equivalent cartridges — especially those running Clean \u0026amp; Clear 100-style systems looking for improved debris capture without sacrificing flow. Ideal for residential and light commercial pools where consistent water clarity and uncomplicated maintenance are priorities.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this cartridge a direct replacement for Pentair R173215?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It matches the dimensions and end-cap fit for Pentair R173215 and Clean \u0026amp; Clear 100-style housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace this cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse weekly and deep-clean monthly under normal conditions; replace when media or end caps show damage or flow declines.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56840595800404,"sku":"B00FW0TVSK","price":145.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-view-packaging_dd3e670f-c2a7-4ef5-bd63-7845f45aafe8.jpg?v=1787072071"},{"product_id":"tier1-pool-filter-cartridge-replacement-for-hayward-cc1750-23-5-16-x-8-15-16-high-flow-trilobal-media-for-longer-run-times","title":"Tier1 Pool Filter Cartridge Replacement for Hayward CC1750 — 23-5\/16\" x 8-15\/16\", high-flow trilobal media for longer run times","description":"\u003cp\u003e\u003cstrong\u003eThe Tier1 Replacement for Hayward CC1750 is a direct-fit pool filter cartridge engineered to restore clear water by trapping fine debris while maintaining steady flow and pump protection.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Tier1 cartridge is built as an affordable, high-performance substitute for Hayward CC1750-compatible filters. Precision dimensions and a robust internal core ensure it seats securely in compatible housings, while advanced trilobal filter fibers pick up more dirt and hair than conventional round-fiber cartridges. It’s independently tested to recognized industry protocols for filtration reliability and is designed to work with a wide range of Hayward-style systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge improve pool clarity without restricting flow?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge uses a high‑flow internal core and layered trilobal media to balance filtration efficiency with unrestricted water circulation. The media traps finer particles, and the core maintains a steady passage for water so pumps aren’t overworked.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fibers capture up to 40% more debris compared to round fibers.\u003c\/li\u003e\n  \u003cli\u003eInternal high‑flow core preserves pump performance and consistent pressure.\u003c\/li\u003e\n  \u003cli\u003eLayered pleats increase surface area for longer run times between cleanings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my Hayward X-Stream or similar system?\u003c\/h3\u003e\n\u003cp\u003eYes — the cartridge is sized and shaped to replace Hayward CC1750-style cartridges and a range of equivalent aftermarket models. Verify measurements against your existing cartridge before ordering to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOverall dimensions: 23-5\/16\" tall by 8-15\/16\" diameter for a secure fit.\u003c\/li\u003e\n  \u003cli\u003eDirect replacements include CCX1750-RE, X-Stream CC1750, and similar part numbers.\u003c\/li\u003e\n  \u003cli\u003eCross-references: Pleatco PXST175, Filbur FC-1287, Unicel C-8317, Waterway 817-0150N.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the cartridge and what testing supports it?\u003c\/h3\u003e\n\u003cp\u003eThis Tier1 replacement is manufactured for repeated wet\/dry cycles and structural stability under normal pool operating pressures. Independent testing to NSF 50–style standards validates its filtration performance and longevity benchmarks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered pleat spacing resists collapse and maintains flow paths.\u003c\/li\u003e\n  \u003cli\u003eMaterials selected for chlorine tolerance and dimensional stability.\u003c\/li\u003e\n  \u003cli\u003eIndependently tested protocols confirm consistent particle capture and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I maintain and replace this filter cartridge?\u003c\/h3\u003e\n\u003cp\u003eRoutine rinsing with a hose and periodic deep cleaning will extend life; replace when pleats show permanent staining, tears, or a sustained rise in system pressure. Proper maintenance keeps filtration efficient and reduces strain on pumps and heaters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse weekly to remove surface debris; deep-clean with compatible cartridge cleaner monthly or as needed.\u003c\/li\u003e\n  \u003cli\u003eInspect pleats and core for damage whenever you service the filter housing.\u003c\/li\u003e\n  \u003cli\u003eReplace immediately if you notice reduced flow, excessive dirt retention, or physical damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners and service professionals running Hayward-style cartridge systems who want an economical, high‑flow replacement that captures more fine debris without compromising pump performance. It’s particularly suitable for residential pools, spas, and commercial systems using compatible cartridge sizes that require NSF‑tested reliability and straightforward maintenance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this Tier1 cartridge compatible with Hayward CC1750 filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It replaces Hayward CC1750\/X‑Stream and equivalent models, but confirm your cartridge measures 23-5\/16\" x 8-15\/16\" before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace the cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse weekly and deep-clean monthly or as needed; replace when pleats are damaged, stained, or system pressure remains high.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tier1","offers":[{"title":"Default Title","offer_id":56841086501204,"sku":"B092BTZKFP","price":143.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/tier1-front-view-cartridge_475ff051-dc8a-468e-8516-7db8701c0ec0.jpg?v=1787074795"}],"url":"https:\/\/gardenluxe.co.uk\/collections\/brand-tier1.oembed","provider":"Gardenluxe Uk","version":"1.0","type":"link"}