{"product_id":"grefilt-ccp520-pool-filter-cartridges-4-pack-520-sq-ft-30-micron-trilobal-nsf-ansi-50-certified","title":"Grefilt CCP520 Pool Filter Cartridges 4-Pack, 520 sq.ft — 30‑Micron Trilobal, NSF\/ANSI 50 Certified","description":"\u003cp\u003e\u003cstrong\u003eGrefilt 4-Pack CCP520 replacement cartridges are heavy-duty 520 sq.ft pool filters built with 30-micron trilobal fabric and NSF\/ANSI 50 certified materials for cleaner, longer-lasting pool filtration.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your pool water clearer and your filter maintenance less frequent with a full set of four compatible CCP520-style cartridges. These Grefilt cartridges are engineered to match the Pentair Clean \u0026amp; Clear Plus 520 profile and many equivalent models, delivering a large filtration area, thicker fabric, and reinforced end caps so your system operates efficiently without frequent service interruptions.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these cartridges improve water clarity?\u003c\/h3\u003e\n\u003cp\u003eThe Grefilt CCP520 cartridges use a 30-micron-rated trilobal fiber fabric that captures fine particles while keeping good flow through the filter. The trilobal shape increases surface area and particle capture compared with standard fibers, reducing suspended debris and haze.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e30-micron precision captures small particulates without choking flow\u003c\/li\u003e\n  \u003cli\u003e520 sq.ft filtration area for increased dirt-holding capacity\u003c\/li\u003e\n  \u003cli\u003eTrilobal fiber structure increases capture points by ~40%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my existing 520-style system?\u003c\/h3\u003e\n\u003cp\u003eThese cartridges match common CCP520 dimensions, so they fit many systems that accept Pentair Clean \u0026amp; Clear Plus 520-style replacements. Before ordering, measure your cartridge to confirm compatibility with the listed dimensions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLength: 32 1\/6\" (approx.) and outside diameter: 7\"\u003c\/li\u003e\n  \u003cli\u003eTop \u0026amp; bottom opening diameter: 3\" to match CCP520 housings\u003c\/li\u003e\n  \u003cli\u003eCompatible with models referencing Pentair R173578, Pleatco PCC130, and similar\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable are these cartridges and how often will I need to replace them?\u003c\/h3\u003e\n\u003cp\u003eGrefilt designed these cartridges with thicker 5oz fabric, reinforced ABS end caps, and a sturdy internal support core to resist pressure and deformation. Those features extend the cartridge life and reduce the frequency of replacements compared with basic designs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e5oz heavy-duty trilobal filtration fabric resists wear and clogging\u003c\/li\u003e\n  \u003cli\u003eHigh-strength ABS end caps and integrated support core for stability\u003c\/li\u003e\n  \u003cli\u003eEstimated up to 30% longer service life versus standard cartridges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these safe for family pools and spas?\u003c\/h3\u003e\n\u003cp\u003eYes—materials used in Grefilt CCP520 cartridges are tested and certified to NSF\/ANSI 50 standards, which verifies they are suitable for pool and spa applications. Certification helps ensure the filter won’t leach harmful substances into treated water.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNSF\/ANSI 50 certified materials for pool and spa safety\u003c\/li\u003e\n  \u003cli\u003eManufacturing process focused on consistent, non-reactive components\u003c\/li\u003e\n  \u003cli\u003eReplacement parts intended for standard residential and commercial pools\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Grefilt 4-Pack CCP520 cartridges are aimed at pool owners, maintenance pros, and facilities managers who need a reliable, high-capacity replacement for Pentair-style 520 systems. Choose this set if you want longer cleaning intervals, better fine-particle capture, and NSF\/ANSI 50-certified materials packaged as a convenient four-cartridge kit to service multi-cartridge housings or keep spares on hand.\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 Pentair CCP520 systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they are compatible replacements for many CCP520-style systems, including references like Pentair R173578—verify your cartridge dimensions before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How fine is the filtration and will it slow flow?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Filtration is 30 microns with trilobal fiber to balance fine particle capture and steady flow; it reduces clogging while maintaining water circulation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Grefilt","offers":[{"title":"Default Title","offer_id":56801431060820,"sku":"B0DQPYGZ36","price":331.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/grefilt-front-packaging-ccp520-4-pack.jpg?v=1786741546","url":"https:\/\/gardenluxe.co.uk\/products\/grefilt-ccp520-pool-filter-cartridges-4-pack-520-sq-ft-30-micron-trilobal-nsf-ansi-50-certified","provider":"Gardenluxe Uk","version":"1.0","type":"link"}