{"product_id":"unicel-c-5626","title":"Unicel C-5626 Replacement Filter for Marquis Spas 03FIL0250 | 25 Sq. Ft.","description":"\u003cdiv class=\"pz-pdp\"\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Unicel C-5626 is a pleated polyester spa filter cartridge engineered for Marquis Spas circulation systems, providing 25.0 sq ft of filtration area through a nonwoven polyester media pack with nominal 15-micron filtration efficiency. The element features molded ABS end caps in a closed-bottom, open-top configuration with a 2-1\/8-inch top opening for standpipe seating; outer diameter measures 5-15\/16 inches, with an overall length of 9-1\/4 inches. Construction includes a perforated polypropylene inner core for axial rigidity under spa pump pressure loading (typical 5–15 PSI operating range). Maximum rated continuous service temperature is 115°F, with intermittent excursions to 120°F within manufacturer tolerance. End cap bond chemistry is formulated for sustained exposure to standard spa water chemistry without delamination.\u003c\/p\u003e\n\u003cp\u003eSpa cartridge service intervals run accelerated relative to pool applications due to elevated bather load per gallon and continuous high-temperature operation. Recommended service cycle: fresh-water rinse every 2–4 weeks; chemical soak in dilute TSP or enzyme degreaser every 4–6 weeks to remove body oils, lotions, and surfactant residue that resist rinsing alone. Replacement is recommended at 12-month intervals for typical residential spa use, or sooner when ΔP rises ≥ 5 PSI above clean-filter baseline. Chemical compatibility: polyester media and ABS end caps tolerate continuous service at ≤ 10 ppm free available chlorine or ≤ 30 ppm total bromine; muriatic acid soak at 1:20 dilution is compatible for calcium scale removal (20-minute maximum exposure, rinse thoroughly). Enzyme cleaner 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":42315912445998,"sku":"UNFC5626","price":40.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0016\/3453\/3422\/files\/UNFC5626_9a4b54d5-2d12-4a94-922e-70a44ed9ab87.jpg?v=1777663257","url":"https:\/\/poolzilla.com\/products\/unicel-c-5626","provider":"Poolzilla","version":"1.0","type":"link"}