{"product_id":"caldera-31489-30-sq-ft-spa-filter-cartridge","title":"Caldera 31489 | 30 sq ft Spa Filter Cartridge","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCaldera 31489 filter cartridge\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e30 square feet\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof pleated filtration for cleaner, clearer spa water. It's one of the most\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewidely compatible cartridges\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the Watkins family of spa brands, serving a broad range of models across decades of production — so it's a dependable replacement to keep on hand.\u003c\/p\u003e\n\u003cp\u003eFiltration is the quiet backbone of good spa water. Every soak leaves behind\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebody oils, lotions, hair, and fine debris\u003c\/strong\u003e, and the cartridge is what removes all of it before it clouds the water, feeds bacteria, or coats your plumbing. When a filter is worn or clogged, the effects spread everywhere: dull water, higher chemical use, softer jets, and a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epump and heater straining\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eagainst restricted flow.\u003c\/p\u003e\n\u003cp\u003eThis is the compact\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e30 square foot size\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— roughly 6 inches across and 10-1\/2 inches tall, with open ends top and bottom. Many spas that use this cartridge run\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emore than one at a time\u003c\/strong\u003e, so the set works together to handle the full filtration load. Like all Caldera filters, it's\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emade in the USA\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCheck how many cartridges your spa uses before you order. Spas built around this 30 square foot size very often run a set of two or three rather than a single filter, and they should always be replaced together. Pairing one new cartridge with older ones leaves the fresh filter doing more than its share and gives you uneven filtration across the set.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eCaldera®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Caldera","offers":[{"title":"Default Title","offer_id":67305794207993,"sku":"jmp1791366199704","price":29.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/5484\/2105\/files\/caldera-31489-30-sq-ft-spa-filter-cartridge_1.jpg?v=1791366206","url":"https:\/\/buyzenvilo.com\/products\/caldera-31489-30-sq-ft-spa-filter-cartridge","provider":"Buyzenvilo","version":"1.0","type":"link"}