{"product_id":"unicel-75-sqf-3-oz-ns-caldera-cartridge-element-c-7375","title":"Unicel 75 Sqf 3 oz NS Caldera Cartridge Element | C-7375","description":"\u003ch1 class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Unicel C-7375 Replacement Filter Cartridge is a 75 sq. ft. spa filter cartridge designed for select Caldera Spas using the newer-style 75 sq. ft. cartridge. Built with high-quality polyester filter media, this cartridge helps capture dirt, oils, debris, and fine particles to keep spa water cleaner and clearer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis replacement cartridge is commonly used as an OEM-style replacement for Caldera spa part numbers 1019301 and 73531. It features a semi-circular handle top and an open bottom with a 2-11\/16 in. inside diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIdeal For\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCaldera Spas using new-style 75 sq. ft. cartridges\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eReplacing worn or dirty spa filters\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eImproving spa water clarity\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRoutine hot tub maintenance\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eReducing debris in spa water\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSpa service technicians\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eResidential spa owners\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e75 sq. ft. replacement spa filter cartridge\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDesigned for select Caldera Spa models\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eReplaces Caldera part numbers 1019301 and 73531\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCompatible cross-reference for Pleatco PCD75N and Filbur FC-3964\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e7 in. outside diameter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e14-3\/4 in. length\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSemi-circular handle top\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOpen bottom with 2-11\/16 in. inside diameter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e216 pleats for strong filtration capacity\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3 oz Reemay 2033 polyester filter media\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHelps capture dirt, oils, debris, and fine particles\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDrop-in replacement for compatible spa filter housings\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBenefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Unicel C-7375 helps maintain clean and clear spa water by trapping debris and contaminants as water circulates through the filter system. Replacing an old or clogged filter cartridge can improve water flow, reduce strain on the spa pump, and make chemical maintenance easier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts 75 sq. ft. filtration area and 216-pleat design provide strong debris-holding capacity for compatible Caldera spa systems. The semi-circular handle makes cartridge removal easier during cleaning and replacement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUnicel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSpa Filter Cartridge\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReplacement Filter Cartridge for 75 sf Caldera Spa\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSKU\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eC-7375\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer Part Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eC-7375 \/ C7375\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFilter Area\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e75 sq. ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7 in.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLength\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14-3\/4 in.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTop End Cap\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSemi-Circular Handle\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTop Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eClosed \/ Handle Top\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBottom End Cap\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOpen\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBottom Inside Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2-11\/16 in.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePleat Count\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e216\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFilter Media\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 oz Reemay 2033 Polyester\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Spa Brand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSelect Caldera Spas\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOEM Cross Reference\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCaldera 1019301, 73531\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eReplacement Cross References\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePleatco PCD75N, Filbur FC-3964\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSpa and hot tub filtration\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSold As\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSingle cartridge\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBarcode\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e090164769646\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCustomer-Facing Q\u0026amp;A\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat does the Unicel C-7375 fit?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe C-7375 fits select Caldera Spas that use the newer-style 75 sq. ft. filter cartridge, including replacements for Caldera part numbers 1019301 and 73531.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat are the dimensions?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis cartridge measures 7 in. outside diameter by 14-3\/4 in. long, with a semi-circular handle top and a 2-11\/16 in. open bottom.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIs this the same as Pleatco PCD75N?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. The Unicel C-7375 is commonly cross-referenced with Pleatco PCD75N and Filbur FC-3964.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIs this for pools or spas?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis is a spa and hot tub filter cartridge, commonly used with compatible Caldera spa models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eHow often should I replace this cartridge?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eReplacement timing depends on spa usage, water care, and cleaning frequency. Replace the cartridge when it is damaged, heavily stained, clogged, has collapsed pleats, or no longer restores water flow after cleaning.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCan I order based only on the spa brand?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eNo. Always confirm the cartridge dimensions, bottom opening size, top style, and existing part number before ordering. Caldera has used different filter styles across different models and years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Before Ordering\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConfirm the following before purchasing:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFilter area: 75 sq. ft.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOutside diameter: 7 in.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLength: 14-3\/4 in.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTop style: Semi-circular handle\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBottom style: Open\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBottom inside diameter: 2-11\/16 in.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOEM cross-reference: Caldera 1019301 \/ 73531\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCompatible cross-reference: Pleatco PCD75N \/ Filbur FC-3964\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDo not order based on spa brand alone. Filter cartridge compatibility depends on exact dimensions, end cap style, bottom opening size, and OEM part number.\u003c\/span\u003e\u003c\/p\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":52762790723894,"sku":"UNFC7375 -H","price":50.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/UNFC7375_0.jpg?v=1755535435","url":"https:\/\/poolsupplydepot.net\/products\/unicel-75-sqf-3-oz-ns-caldera-cartridge-element-c-7375","provider":"Pool Supply Depot","version":"1.0","type":"link"}