{"product_id":"proaqua-sundance-hot-spring-35-sq-ft-replacement-filter-cartridge-4ch-35-40351","title":"ProAqua Sundance \u0026 Hot Spring 35 Sq. Ft. Replacement Filter Cartridge (4CH-35 \/ 40351)","description":"\u003cstyle\u003e\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003cdiv\u003e\n\u003cp\u003eKeep your spa water crystal clear with the \u003cstrong\u003eProAqua 4CH-35 Replacement Filter Cartridge\u003c\/strong\u003e, a premium replacement filter designed for select \u003cstrong\u003eSundance®\u003c\/strong\u003e and \u003cstrong\u003eHot Spring®\u003c\/strong\u003e spa models. Engineered to capture dirt, body oils, debris, and other contaminants, this high-performance cartridge helps maintain clean water while supporting efficient circulation and heater operation. \u003c\/p\u003e\n\u003cp\u003eManufactured with durable pleated filtration media, the 4CH-35 delivers reliable filtration performance and excellent water flow. Its threaded bottom connection and handle-top design allow for easy installation and removal, making routine spa maintenance simple and effective. \u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003e✔ 35 square feet of filtration area\u003c\/p\u003e\n\u003cp\u003e✔ Premium pleated filtration media\u003c\/p\u003e\n\u003cp\u003e✔ Improves water clarity and cleanliness\u003c\/p\u003e\n\u003cp\u003e✔ Captures dirt, oils, and contaminants\u003c\/p\u003e\n\u003cp\u003e✔ OEM-quality replacement performance\u003c\/p\u003e\n\u003cp\u003e✔ Handle-top design for easy removal\u003c\/p\u003e\n\u003cp\u003e✔ 1-1\/2\" MPT threaded connection\u003c\/p\u003e\n\u003cp\u003e✔ Durable construction for long filter life\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"___5wvz9a0 ftgm304 f1oy3dpc fm6nont f48hbct\" role=\"presentation\" tabindex=\"0\"\u003e\n\u003cdiv class=\"___1dmoc29 f10pi13n ftgm304 f1enuhaj fdclmfp f1nbblvp fat0sn4 f1ov4xf1 fekwl8i f1lmfglv f1oz7aqm f1abmfm4 f1w619qj f16h0jq8\"\u003e\n\u003ctable class=\"___1vyiefv f1ddd56o f16vktn6 f1ahpp82 f11qra4b f1uinfot fibjyge fvueend f9yszdx f1fu4s3n f3l3pb3 f10ghnd0 f8fmt76 fjvbh62 f1qrqxae f1vw5qpk fc02sbz fxawf59 fymf513 f1aoyrul f1el8yx3 f1pymoxg f1ofu761 fe6itr f7coize f1794535 f1o0pw0q fbjjl9v fk1v6el f16pyhcb f1ixlhx9 f12zef0i flu5r5u f19haqzy f1owmcxx f1oddm8q f1004tna fcoaxci fh0ee9u f15v23i2 f1dmj53 f1r1gcv9 f14z1veh ffufd3x f1ypplot f1660cg\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Area\u003c\/td\u003e\n\u003ctd\u003e35 Sq. Ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e4-5\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Style\u003c\/td\u003e\n\u003ctd\u003eHandle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBottom Style\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\" Male Pipe Thread (MPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia Type\u003c\/td\u003e\n\u003ctd\u003ePremium Pleated Filtration Media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eReplacement Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003chr\u003e\n\u003ch2\u003eCompatible Spa Brands \u0026amp; Models\u003c\/h2\u003e\n\u003cp\u003eThis filter is commonly used in:\u003c\/p\u003e\n\u003ch3\u003eHot Spring Spas®\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGrandee (older models)\u003c\/li\u003e\n\u003cli\u003eSelect Watkins® Hot Spring spa models\u003c\/li\u003e\n\u003cli\u003eVarious Hot Spring filtration systems utilizing the PTL35 \/ 4CH-35 filter configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSundance Spas®\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSundance models using OEM filter 6540-486\u003c\/li\u003e\n\u003cli\u003eSelect Sundance spa filtration systems requiring the 4CH-35 cartridge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Compatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWatkins® Spa Systems\u003c\/li\u003e\n\u003cli\u003eSelect legacy spa systems using a 35 sq. ft. threaded filter cartridge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways verify dimensions and thread style before ordering. \u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCross Reference Part Numbers\u003c\/h2\u003e\n\u003cp\u003eThis filter is compatible with and replaces:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProAqua 40351\u003c\/li\u003e\n\u003cli\u003eDarlly 40351\u003c\/li\u003e\n\u003cli\u003eUnicel 4CH-35\u003c\/li\u003e\n\u003cli\u003ePleatco PTL35P\u003c\/li\u003e\n\u003cli\u003ePleatco PTL35P4\u003c\/li\u003e\n\u003cli\u003eFilbur FC-0161\u003c\/li\u003e\n\u003cli\u003eSundance 6540-486\u003c\/li\u003e\n\u003cli\u003eBaleen AK-9006\u003c\/li\u003e\n\u003cli\u003eWatkins 31382\u003c\/li\u003e\n\u003cli\u003eSD-00007\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003chr\u003e\n\u003ch2\u003eWhy Replace Your Hot Tub Filter?\u003c\/h2\u003e\n\u003cp\u003eRegular filter replacement helps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eImprove water clarity\u003c\/li\u003e\n\u003cli\u003eIncrease filtration efficiency\u003c\/li\u003e\n\u003cli\u003eReduce strain on pumps and heaters\u003c\/li\u003e\n\u003cli\u003eImprove sanitizer effectiveness\u003c\/li\u003e\n\u003cli\u003eExtend spa equipment life\u003c\/li\u003e\n\u003cli\u003eMaintain proper water circulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor best results, rinse your filter every 2 to 4 weeks and perform a deep cleaning every 3 to 4 months. Replace the cartridge every 12 months, or sooner for heavily used spas. \u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePro Tip\u003c\/h2\u003e\n\u003cp\u003eKeep a second filter cartridge on hand and rotate filters during cleaning. Allowing a cleaned cartridge to dry completely between uses can help improve filtration efficiency and extend filter lifespan.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Aqua Spa \u0026 Pool Supply","offers":[{"title":"Default Title","offer_id":47237736267948,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/2077\/8156\/files\/Unicel-4CH-35-600x600.jpg?v=1789667355","url":"https:\/\/snowvalleyspas.ca\/products\/proaqua-sundance-hot-spring-35-sq-ft-replacement-filter-cartridge-4ch-35-40351","provider":"Snow Valley Spas","version":"1.0","type":"link"}