{"product_id":"unicel-c-9650","title":"Unicel C-9650 Replacement Filter for Jacuzzi CFR-50 | 50 Sq. Ft.","description":"\u003cdiv class=\"pz-pdp\"\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Unicel C-9650 is a pleated polyester cartridge filter element rated for residential and light commercial pool applications, delivering 50.0 sq ft of effective filtration area through a Reemay nonwoven polyester media pack. Dimensional specifications: 8.5-inch OD, 4.0-inch open-top ID, 14.25-inch overall length, with molded ABS end caps seated on a perforated polypropylene core for axial rigidity under standard residential operating pressures. Nominal filtration efficiency is 20 microns under standard test conditions; rated flow is 50 GPM at clean differential, with a maximum operating pressure of 25 PSI and maximum continuous service temperature of 104°F. End cap geometry incorporates a closed handle-style top cap, supporting top-load installation in vertical canister housings.\u003c\/p\u003e\n\u003cp\u003eService interval recommendation: residential installations — pressure-differential-based replacement triggered at ΔP ≥ 8–10 PSI above clean-filter operating baseline, or on an annual calendar cycle, whichever occurs first. Routine maintenance: rinse every 4–6 weeks; chemical soak with TSP or enzyme cleaner every 3–6 months to remove oils, surfactants, and organic loading that resist mechanical rinsing. For calcium scale accumulation, the element is compatible with muriatic acid soak at 1:20 dilution (20-minute maximum exposure); rinse thoroughly before reinstallation. Chlorine tolerance: continuous service at ≤ 10 ppm free available chlorine; enzyme cleaners compatible without restriction. ABS end cap construction is compatible with standard acid wash procedures. 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":42315916116014,"sku":"UNFC9650","price":58.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0016\/3453\/3422\/files\/UNFC9650_e2c9f673-d1a1-422e-b455-a4762e832790.jpg?v=1777663613","url":"https:\/\/poolzilla.com\/products\/unicel-c-9650","provider":"Poolzilla","version":"1.0","type":"link"}