{"title":"Cal Spas Filters","description":"\u003cp\u003eBrowse our selection of Cal Spas replacement filters for hot tubs and swim spas.\u003c\/p\u003e","products":[{"product_id":"4ch-949-filter","title":"4CH-949 Filter","description":"\u003cp\u003e\u003cstrong\u003eUnicel 4CH-949 4000 Series Pleated Filter Cartridge \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e50 sq. ft. | 13-1\/2\" x 4-15\/16\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Unicel 4CH-949 filter cartridge is commonly used in many Cal Spas hot tubs and swim spas, delivering reliable water filtration and strong flow performance. While many filter cartridges may appear similar, the internal materials, construction quality, and fitment make a major difference in filtration efficiency and lifespan.\u003c\/p\u003e\n\u003cp\u003eUnicel cartridges are manufactured to precise OEM specifications to ensure proper fit, sealing, and performance in your spa system. Built with high-quality filtration media and durable construction, Unicel filters help maintain cleaner water, improve circulation, and protect spa components from unnecessary wear.\u003c\/p\u003e\n\u003cp\u003eFor over 60 years, Unicel has remained a trusted leader in pool and spa filtration products. Don’t settle for low-quality imitations — choose genuine Unicel filters for dependable performance in your Cal Spas hot tub or swim spa.\u003c\/p\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":46340566941845,"sku":null,"price":62.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/2142\/2741\/files\/IMG-3850.png?v=1778906353"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/2142\/2741\/collections\/Cal_spa_logo.png?v=1778703033","url":"https:\/\/shopredrockspas.com\/collections\/cal-spas-filters.oembed","provider":"Red Rock Spas","version":"1.0","type":"link"}