{"product_id":"unicel-c-9422","title":"Unicel C-9422 Replacement Filter for Jacuzzi CFR-100 (in-line) | 250 Sq. Ft.","description":"\u003cdiv class=\"pz-pdp\"\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Unicel C-9422 is a pleated polyester cartridge filter element engineered for the Jacuzzi CFR-100 in-line filter system, delivering 250 sq ft of filtration area in a high-capacity commercial-grade form factor. Media construction is nonwoven Reemay polyester with nominal 20-micron filtration efficiency, supported on a structural core for sustained operation under elevated differential pressure. End caps are molded with closed-bottom, open-top geometry for axial-flow seating in the CFR-100 housing manifold. The 250 sq ft media pack provides extended dirt-loading capacity between service intervals, reducing cycle frequency in heavy-duty residential and light commercial circulation systems where in-line filter configurations are specified.\u003c\/p\u003e\n\u003cp\u003eService interval recommendation: replace at ΔP ≥ 8–10 PSI above clean-filter operating baseline, or on an annual calendar cycle, whichever occurs first; high-bather-load installations should verify ΔP monthly and log readings for service trending. Intermediate maintenance includes fresh-water rinse every 4–6 weeks and chemical soak (TSP or dedicated cartridge enzyme cleaner) every 3–6 months to address oils, surfactants, and organic loading that resist rinsing. Chemical compatibility: polyester media tolerates continuous service at ≤ 10 ppm free available chlorine; muriatic acid soak at 1:20 dilution is compatible for calcium scale removal (20-minute maximum exposure, rinse thoroughly before reinstallation); enzyme cleaners compatible without restriction. Standard Unicel 90-day manufacturer's 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 spa 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":42315915657262,"sku":"UNFC9422","price":176.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0016\/3453\/3422\/files\/UNFC9422_8c9b8d99-55c3-41fa-b3d4-393a8c370044.jpg?v=1777663560","url":"https:\/\/poolzilla.com\/products\/unicel-c-9422","provider":"Poolzilla","version":"1.0","type":"link"}