{"product_id":"unicelreplacementfiltercartridge32sfmartecc4332unfc4332","title":"Unicel Replacement Filter Cartridge 32 sf Martec | C-4332","description":"\u003cdiv class=\"product-description\"\u003e\n  \u003ch2\u003eUnicel C-4332 Replacement Spa Filter Cartridge – 32 Sq Ft (Open Top \u0026amp; Bottom, 2-1\/8\" ID)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Unicel C-4332 is a premium \u003cstrong\u003e32 sq ft\u003c\/strong\u003e pleated replacement filter cartridge used in select hot tub and spa\n    filtration systems that take a compact cartridge with \u003cstrong\u003eopen ends\u003c\/strong\u003e. It’s designed to capture fine debris while\n    maintaining strong circulation, helping improve water clarity when rinsed and cleaned on a regular schedule.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e32 sq ft\u003c\/strong\u003e filtration area for effective debris capture and steady flow\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOpen top \u0026amp; open bottom\u003c\/strong\u003e end caps for standpipe-style housings\u003c\/li\u003e\n    \u003cli\u003eDurable pleated media built for repeated cleaning cycles\u003c\/li\u003e\n    \u003cli\u003eDirect replacement when matched by part number and measurements\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e C-4332\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFiltration Area:\u003c\/strong\u003e 32 sq ft\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 4-15\/16\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 11-7\/8\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTop:\u003c\/strong\u003e Open\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTop Inside Diameter:\u003c\/strong\u003e 2-1\/8\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBottom:\u003c\/strong\u003e Open\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBottom Inside Diameter:\u003c\/strong\u003e 2-1\/8\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePleat Count:\u003c\/strong\u003e 154\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFilter Media:\u003c\/strong\u003e 3 oz pleated media\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eReplaces \/ Cross References\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePleatco:\u003c\/strong\u003e PMT25 (some applications also reference PMT35)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFilbur:\u003c\/strong\u003e FC-1620 (some listings also reference FC-1612)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOther common references:\u003c\/strong\u003e Martec SC-2200, Martec SC-3500, Sonfarrel 220022 \/ 30-220032\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePleats are torn, frayed, or separating from the end caps\u003c\/li\u003e\n    \u003cli\u003eFilter remains restrictive even after a deep clean and thorough rinse\u003c\/li\u003e\n    \u003cli\u003eWater stays cloudy despite balanced chemistry and normal sanitizer levels\u003c\/li\u003e\n    \u003cli\u003eEnd caps are cracked\/warped or the inner core is weakening\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Unicel%20C-4332\"\u003eUnicel C-4332 (Shop \/ Options)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=spa%20cartridge%20filter%20cleaner\"\u003eSpa Cartridge Filter Cleaner\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=cartridge%20cleaning%20wand\"\u003eCartridge Cleaning Wand\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=spa%20water%20test%20strips\"\u003eSpa Water Test Strips\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=silicone%20pool%20lube\"\u003eSilicone O-Ring Lubricant (Pool\/Spa)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eRinse the cartridge regularly (often weekly with heavy spa use) to prevent restriction and keep jets performing well.\u003c\/li\u003e\n    \u003cli\u003eDeep clean every 3–6 weeks using a cartridge cleaner to remove oils; rinse thoroughly before reinstalling.\u003c\/li\u003e\n    \u003cli\u003eIf scale is present, degrease first, then treat for scale, and rinse completely before returning to service.\u003c\/li\u003e\n    \u003cli\u003eConsider rotating between two cartridges (one in use, one drying after cleaning) to extend overall filter life.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Unicel","offers":[{"title":"Default Title","offer_id":46797840548015,"sku":"C-4332","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/unicel-replacement-filter-cartridge-32-sf-martec-c-4332-cartridges-3261055.jpg?v=1777068029","url":"https:\/\/freshized.com\/products\/unicelreplacementfiltercartridge32sfmartecc4332unfc4332","provider":"Freshized","version":"1.0","type":"link"}