{"product_id":"unicelreplacementfiltercartridge30sfwatkinsc6430unfc6430","title":"Unicel Replacement Filter Cartridge 30 sf Watkins | C-6430","description":"\u003cdiv\u003e\n\u003ch2\u003eUnicel C-6430 30 sq ft Replacement Cartridge Filter\u003c\/h2\u003e\n\u003cp\u003eThe Unicel C-6430 is a premium 30 square-foot cartridge filter designed for spas and small-to-mid-size pool systems. It delivers reliable filtration, high dirt-holding capacity, and straightforward installation for hot tubs and compatible filter housings.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e30 sq ft filtration area — provides ample surface for efficient debris and particulate capture while maintaining good flow rates.\u003c\/li\u003e\n\u003cli\u003e124 pleats for increased surface area and better dirt trapping compared to standard flat filters.\u003c\/li\u003e\n\u003cli\u003e6″ outer diameter and 10.5″ length — compact size suitable for many spa and small-pool filter housings.\u003c\/li\u003e\n\u003cli\u003eOpen-top and open-bottom 1 15\/16″ inner diameter ports for easy installation and wet-end flow compatibility.\u003c\/li\u003e\n\u003cli\u003eDurable polyester media and chemical-resistant end caps — built to withstand repeated cleaning and spa\/pool water conditions.\u003c\/li\u003e\n\u003cli\u003eDirect replacement for many OEM cartridges (e.g. for select Hot Springs \/ Watkins spas and systems using equivalents like Filbur FC-3915 or Pleatco PWK30).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Unicel\u003c\/li\u003e\n\u003cli\u003ePart Number: C-6430\u003c\/li\u003e\n\u003cli\u003eFilter Type: Cartridge filter\u003c\/li\u003e\n\u003cli\u003eFiltration Area: 30 sq ft\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 6″\u003c\/li\u003e\n\u003cli\u003eLength: 10.5″\u003c\/li\u003e\n\u003cli\u003eTop \u0026amp; Bottom Port Inner Diameter: 1-15\/16″ (open-end)\u003c\/li\u003e\n\u003cli\u003ePleat Count: 124\u003c\/li\u003e\n\u003cli\u003eMedia: Durable polyester filter cloth\u003c\/li\u003e\n\u003cli\u003eApplication: Compatible spas, small pools, and filter housings originally using C-6430 or equivalent cartridges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose C-6430\u003c\/h3\u003e\n\u003cp\u003eWhether you’re replacing a worn cartridge or upgrading your spa’s filtration, the C-6430 offers a balance of strong flow and thorough filtration in a compact design. Its large pleated surface area extends filter cycles and helps maintain cleaner, clearer water — ideal for spas or small pools needing dependable, low-maintenance filtration performance.\u003c\/p\u003e\n\u003ch3\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShut off the pump and relieve pressure before removing the old cartridge.\u003c\/li\u003e\n\u003cli\u003eEnsure the filter housing is clean before installing the new C-6430 cartridge — debris or buildup can reduce performance.\u003c\/li\u003e\n\u003cli\u003eCheck that both top and bottom ports seat properly to ensure tight, leak-free flow.\u003c\/li\u003e\n\u003cli\u003eRinse or soak the cartridge regularly (per spa\/pool manufacturer recommendations) to extend service life, and replace when pleats become damaged, warped, or hardened.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":46797795524783,"sku":"C-6430","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-30-sf-watkins-c-6430-cartridges-6267104.jpg?v=1777067458","url":"https:\/\/freshized.com\/products\/unicelreplacementfiltercartridge30sfwatkinsc6430unfc6430","provider":"Freshized","version":"1.0","type":"link"}