{"product_id":"pleatco-pool-spa-filter-cartridge-pa137-pak4-replacement-for-unicel-c-7490-4-7-x-32-75-advanced-point-bond-media","title":"Pleatco Pool \u0026 Spa Filter Cartridge PA137-PAK4 Replacement for Unicel C-7490-4 — 7\" x 32.75\", Advanced Point-Bond Media","description":"\u003cb\u003ePleatco PA137-PAK4 is a direct-replacement pool and spa filter cartridge engineered to match Unicel C-7490-4 performance while improving flow and dirt-holding capacity.\u003c\/b\u003e\n\n\u003cp\u003eThis genuine Pleatco cartridge uses Advanced Point Bonded media and a Free Flow Core to trap fine particles, extend cleaning intervals, and reduce pump strain. Built to OEM tolerances for a dependable fit and tested at Pleatco’s U.S. engineering center, the PA137-PAK4 replaces Unicel C-7490-4 and compatible models such as CX1380-RE and select Hayward Super-Star-Clear and SwimClear cartridges. It combines a reinforced core, Super-Bond pleat bands and durable end caps to deliver consistent filtration in residential and light-commercial pools.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cartridge capture smaller debris without frequent cleaning?\u003c\/h3\u003e\n\u003cp\u003ePleatco Advanced Point Bonded media features a higher fiber count and a point-bond construction that creates a dense filtration surface without restricting water flow. That means the cartridge can trap finer particles while resisting rapid clogging, so you spend less time cleaning and more time swimming.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-fiber, point-bonded fabric captures finer particulates\u003c\/li\u003e\n  \u003cli\u003e4 oz. media weight with 548 sq ft of surface area for extended dirt capacity\u003c\/li\u003e\n  \u003cli\u003eSuper-Bond bands keep pleats separated for even loading\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this filter keep circulation efficient and lower pump stress?\u003c\/h3\u003e\n\u003cp\u003eThe Pleatco Free Flow Core is an injection-molded box-ladder design that maximizes throughput and maintains structural integrity under pressure. By encouraging even flow and reducing resistance, the core helps keep operating pressures lower, which can reduce pump wear over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFree Flow Core increases water throughput and stability\u003c\/li\u003e\n  \u003cli\u003eReinforced center supports prevent core collapse under load\u003c\/li\u003e\n  \u003cli\u003eDesign promotes even dirt loading for consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes this cartridge fit my existing filter housing?\u003c\/h3\u003e\n\u003cp\u003eThe PA137-PAK4 is engineered to meet exacting OEM dimensions so it installs as a like-for-like replacement in systems that accept Unicel C-7490-4 and equivalent cross-reference numbers. Verify your housing accepts a 7\" diameter by 32.75\" length cartridge with 3\" top and bottom center holes prior to purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOuter diameter: 7\" (177.8 mm)\u003c\/li\u003e\n  \u003cli\u003eLength: 32.75\" (831.85 mm)\u003c\/li\u003e\n  \u003cli\u003eTop\/bottom center hole: 3\" (76.2 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is Pleatco quality and traceability different?\u003c\/h3\u003e\n\u003cp\u003ePleatco designs and tests cartridges at its U.S. facility and provides a SmartTrack code on each filter for lifetime identification, quality tracking and warranty support. Construction features—like break-resistant end caps and Superbond pleat bands—focus on longer service life and simpler maintenance compared with many alternatives.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMade and engineered in the U.S. with OEM tolerances\u003c\/li\u003e\n  \u003cli\u003ePleatco SmartTrack code for product identification and tracking\u003c\/li\u003e\n  \u003cli\u003eDurable end caps and reinforced pleat bands for extended life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool and spa owners, service technicians, and facility managers who need a reliable, OEM-compatible replacement cartridge that improves filtration efficiency and lowers maintenance frequency. Choose the Pleatco PA137-PAK4 when you want higher dirt capture, steady flow, and a trusted, traceable cartridge that fits systems using Unicel C-7490-4 or equivalent cross-references.\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 Pleatco PA137-PAK4 compatible with Unicel C-7490-4?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The PA137-PAK4 is a direct replacement for Unicel C-7490-4 and compatible cross-reference models like CX1380-RE.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the cartridge dimensions I should check?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Confirm 7\" diameter, 32.75\" length, and 3\" top and bottom center holes before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pleatco","offers":[{"title":"Default Title","offer_id":56806003605844,"sku":"B004TZYB52","price":604.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/pleatco-filter-cartridge-front_jpg.jpg?v=1786811331","url":"https:\/\/gardenluxe.co.uk\/products\/pleatco-pool-spa-filter-cartridge-pa137-pak4-replacement-for-unicel-c-7490-4-7-x-32-75-advanced-point-bond-media","provider":"Gardenluxe Uk","version":"1.0","type":"link"}