{"product_id":"unicel-c-6960","title":"Unicel C-6960 Replacement Filter for Hayward DEX4800DA (Quad DE 60) | 15 Sq. Ft.","description":"\u003cdiv class=\"pz-pdp\"\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Unicel C-6960 is a complete DE grid filter element assembly engineered for Hayward DEX4800DA Quad DE 60 housings, providing 15.0 sq ft of total filtration area across a four-grid sector configuration. Media construction: polyester fabric over powder-coated steel frame, with reinforced perimeter seams and a center manifold port machined to OEM dimensional spec. Standard DE loading: 6.0 lb diatomaceous earth at initial precoat (1.0 lb per 10 sq ft × 60 sq ft system rating when used in full grid-set replacement). Operating pressure range: 8–30 PSI with a clean differential baseline typically 10–14 PSI. The grid assembly is dimensionally matched to the Hayward Quad DE 60 collector manifold and tank seat geometry for confirmed bypass-free installation.\u003c\/p\u003e\n\u003cp\u003eService interval recommendation: backwash when ΔP rises 5–8 PSI above clean baseline; recharge DE media after each backwash cycle at the 1.0 lb \/ 10 sq ft loading ratio. Annual service: full disassembly, manifold inspection, and grid fabric inspection for tears \u0026gt; 1 inch, seam delamination, or frame corrosion — replace complete grid set when any sector exhibits these failure modes or DE blowback is observed at the return. Chemical compatibility: polyester fabric and powder-coated steel frame tolerate continuous service at ≤ 10 ppm free available chlorine; muriatic acid soak (1:20 dilution, 20 minutes maximum) is compatible for calcium scale removal, followed by thorough fresh-water rinse. Enzyme degreaser cleaners are compatible without restriction and recommended for oil\/surfactant fouling prior to acid treatment. Standard Unicel 90-day manufacturing defect warranty applies through authorized distribution.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eYour order includes the selected quantity of replacement pool filter cartridges. Each unit is individually inspected for quality before shipping.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":42315912675374,"sku":"UNFC6960","price":76.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0016\/3453\/3422\/files\/UNFC6960_b3777355-d9c9-4ebb-b392-6b283e5b2bcb.jpg?v=1777663263","url":"https:\/\/poolzilla.com\/products\/unicel-c-6960","provider":"Poolzilla","version":"1.0","type":"link"}