{"product_id":"unicel-c-4305-hot-tub-filter-cartridge","title":"Unicel C-4305 Hot Tub Filter Cartridge","description":"\u003cp data-start=\"94\" data-end=\"429\"\u003eThe Unicel C-4305 has been used in a variety of hot tub models and brands over the years, including select \u003cstrong data-start=\"201\" data-end=\"213\"\u003eCal Spas\u003c\/strong\u003e and the \u003cstrong data-start=\"222\" data-end=\"254\"\u003e1994 Suntub by Sundance Spas\u003c\/strong\u003e. As filter dimensions can vary between spa models, it’s always best to confirm this cartridge matches the size of your existing filter to ensure proper fit and performance.\u003c\/p\u003e\n\u003cp data-start=\"431\" data-end=\"452\"\u003e\u003cstrong data-start=\"431\" data-end=\"450\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"453\" data-end=\"700\"\u003e\n\u003cli data-start=\"453\" data-end=\"480\"\u003e\n\u003cp data-start=\"455\" data-end=\"480\"\u003e\u003cstrong data-start=\"455\" data-end=\"471\"\u003ePart Number:\u003c\/strong\u003e C-4305\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"481\" data-end=\"507\"\u003e\n\u003cp data-start=\"483\" data-end=\"507\"\u003e\u003cstrong data-start=\"483\" data-end=\"496\"\u003eDiameter:\u003c\/strong\u003e 4-15\/16\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"508\" data-end=\"531\"\u003e\n\u003cp data-start=\"510\" data-end=\"531\"\u003e\u003cstrong data-start=\"510\" data-end=\"521\"\u003eLength:\u003c\/strong\u003e 14-7\/8\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"532\" data-end=\"556\"\u003e\n\u003cp data-start=\"534\" data-end=\"556\"\u003e\u003cstrong data-start=\"534\" data-end=\"542\"\u003eTop:\u003c\/strong\u003e 2-1\/8\" Open\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"557\" data-end=\"584\"\u003e\n\u003cp data-start=\"559\" data-end=\"584\"\u003e\u003cstrong data-start=\"559\" data-end=\"570\"\u003eBottom:\u003c\/strong\u003e 2-1\/8\" Open\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"585\" data-end=\"615\"\u003e\n\u003cp data-start=\"587\" data-end=\"615\"\u003e\u003cstrong data-start=\"587\" data-end=\"602\"\u003eMedia Area:\u003c\/strong\u003e 50 sq. ft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"616\" data-end=\"675\"\u003e\n\u003cp data-start=\"618\" data-end=\"675\"\u003e\u003cstrong data-start=\"618\" data-end=\"635\"\u003eFilter Media:\u003c\/strong\u003e 3 oz. Reemay® premium trilobal fabric\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"676\" data-end=\"700\"\u003e\n\u003cp data-start=\"678\" data-end=\"700\"\u003e\u003cstrong data-start=\"678\" data-end=\"694\"\u003ePleat Count:\u003c\/strong\u003e 193\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"702\" data-end=\"732\"\u003e\u003cstrong data-start=\"702\" data-end=\"730\"\u003eCompatible Replacements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"733\" data-end=\"877\"\u003e\n\u003cli data-start=\"733\" data-end=\"750\"\u003e\n\u003cp data-start=\"735\" data-end=\"750\"\u003ePleatco PMT50\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"751\" data-end=\"769\"\u003e\n\u003cp data-start=\"753\" data-end=\"769\"\u003eFilbur FC-1630\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"770\" data-end=\"797\"\u003e\n\u003cp data-start=\"772\" data-end=\"797\"\u003eMartec CL-2807, CL-2810\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"798\" data-end=\"834\"\u003e\n\u003cp data-start=\"800\" data-end=\"834\"\u003eSonfarrel 220142, 220145, 220152\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"835\" data-end=\"877\"\u003e\n\u003cp data-start=\"837\" data-end=\"877\"\u003eSundance 6540-497 (\u003cem data-start=\"856\" data-end=\"874\"\u003e1994 Suntub only\u003c\/em\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"879\" data-end=\"1231\"\u003e\u003cstrong data-start=\"879\" data-end=\"908\"\u003eLong-Lasting Performance:\u003c\/strong\u003e\u003cbr data-start=\"908\" data-end=\"911\"\u003eWhile most spa filters require replacement every 6–12 months, the Unicel C-4305 uses \u003cstrong data-start=\"996\" data-end=\"1041\"\u003eReemay® premium trilobal filtration media\u003c\/strong\u003e, which provides \u003cstrong data-start=\"1058\" data-end=\"1083\"\u003e45% more surface area\u003c\/strong\u003e than standard rounded fibers. With proper cleaning and maintenance, it can last \u003cstrong data-start=\"1164\" data-end=\"1191\"\u003eup to 18 months or more\u003c\/strong\u003e, depending on usage and care routine.\u003c\/p\u003e","brand":"Coast Spas Hot Tubs","offers":[{"title":"Default Title","offer_id":51078046875961,"sku":"C-4305","price":79.29,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/7066\/9369\/files\/4305__13438.1699630900.webp?v=1755118044","url":"https:\/\/coastspashottubs.com\/products\/unicel-c-4305-hot-tub-filter-cartridge","provider":"Coast Spas Hot Tubs","version":"1.0","type":"link"}