{"product_id":"unicel_8ch-502","title":"Unicel 8CH-502 Replacement Filter Cartridge | 50 sq. ft. | Vita Spas PVT 50WH","description":"\u003cp\u003eThe Unicel 8CH-502 delivers 50 square feet of filtration capacity in a compact wide-format design — 7 1\/4\" long with an 8 1\/2\" outer diameter — purpose-built for Vita Spa filter housings. Engineered with 258 precision pleats of 3 oz. Reemay 2033 spunbond polyester media and a 2\" MPT threaded bottom connection, the 8CH-502 is the direct replacement for Vita Spas OEM part number PVT 50WH.\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0;\"\u003e\n\u003cstrong\u003e⚠️ IMPORTANT: Remove Pad Adapter Before Installing\u003c\/strong\u003e\u003cbr\u003e\nSome Vita Spa filter canisters include a flat, non-threaded \u003cstrong\u003epad adapter\u003c\/strong\u003e at the bottom of the housing — used for older drop-in style filters. To install the 8CH-502, \u003cstrong\u003eunscrew and remove this adapter plate first\u003c\/strong\u003e to expose the 2\" female threads in the housing. The 8CH-502's MPT bottom threads directly into those exposed fittings. Applicable to all 2006 and later models, and earlier models with slotted bottoms once the pad adapter is removed.\n\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0;\"\u003e\n\u003cstrong\u003e⚠️ IMPORTANT: Full Filter Service May Require 2 Cartridges\u003c\/strong\u003e\u003cbr\u003e\nSeveral larger Vita Spa models — including the \u003cstrong\u003eJoli\u003c\/strong\u003e and \u003cstrong\u003eNuage\u003c\/strong\u003e — use a \u003cstrong\u003edual-cartridge system\u003c\/strong\u003e requiring two 8CH-502 filters for a complete service. Replacing only one while leaving a worn cartridge in place reduces overall filtration efficiency. Add \u003cstrong\u003e2 units\u003c\/strong\u003e to your cart if your spa model requires a pair.\n\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eFilter Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e50 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e7 1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e8 1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e3 oz. Reemay 2033\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePleat Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e258\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 15px 15px 0 15px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 12px; margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eTop Cap:\u003c\/strong\u003e v-groove semi-circular handle\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/vgroove_semicircular_handle1.gif\" alt=\"Top Cap\" style=\"max-width: 100%; height: auto; margin: 0; padding: 0;\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 15px 15px 0 15px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 12px; margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eBottom Cap:\u003c\/strong\u003e 2\" male thread\/MPT\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/male_thread1234.gif\" alt=\"Bottom Cap\" style=\"max-width: 100%; height: auto; margin: 0; padding: 0;\"\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFits into:\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eOEM Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eVita Spas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e50 sq. ft. Top Load \/ Front Access\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePVT 50WH\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eRemove pad adapter (if present) before threading MPT into suction fitting. 2006+ models and earlier slotted-bottom models with pad adapter removed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e(This is not an exhaustive list. Verify compatibility before purchasing.)\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Confirm your exact filter dimensions before ordering — measure the length and outer diameter of your existing cartridge and compare to the 7 1\/4\" × 8 1\/2\" specs above. The v-groove semi-circular handle and 2\" MPT bottom threading are the two key identifiers that distinguish the 8CH-502 from other 50 sq. ft. spa cartridges with different end cap configurations.\u003c\/p\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":53828217864467,"sku":"8CH-502","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/8CH-502__8CH-502_1.jpg?v=1771455850","url":"https:\/\/poolaroo.com\/products\/unicel_8ch-502","provider":"Poolaroo","version":"1.0","type":"link"}