{"product_id":"pentair-clean-clear-plus-tank-bottom-almond-178578","title":"Pentair Clean \u0026 Clear Plus Tank Bottom Assembly – Almond | 178578","description":"\u003cp\u003eThe Pentair Tank Bottom Assembly (178578) is the OEM replacement lower housing shell for the Pentair Clean \u0026amp; Clear Plus cartridge filter series — 240, 320, 420, and 520 sq. ft. models manufactured after November 1998. This is the \u003cstrong\u003eAlmond\u003c\/strong\u003e colored version; for the Gray version, see \u003ca href=\"\/products\/pentair_178560\"\u003epart number 178560\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\n\u003cstrong\u003e⚠️ IMPORTANT: COLOR-SPECIFIC PART — CONFIRM BEFORE ORDERING\u003c\/strong\u003e\u003cbr\u003e\nThis is the \u003cstrong\u003eAlmond\u003c\/strong\u003e tank bottom. If your Clean \u0026amp; Clear Plus filter is Gray, you need the \u003ca href=\"\/products\/pentair_178560\"\u003eGray Tank Bottom (178560)\u003c\/a\u003e. Compare the color of your existing housing before adding to cart.\n\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\n\u003cstrong\u003e⚠️ IMPORTANT: VERIFY FITMENT WHEN MIXING TANK HALVES\u003c\/strong\u003e\u003cbr\u003e\nReplacing only the tank bottom while retaining an existing tank top can result in a poor seal. Design revisions, manufacturing tolerances, and aging or warpage of the existing half can prevent proper mating. For best results, replace both tank halves at the same time and always install a new tank O-ring.\n\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\n\u003cstrong\u003e⚠️ IMPORTANT: POST-NOVEMBER 1998 MODELS ONLY\u003c\/strong\u003e\u003cbr\u003e\nThis part is designed for Clean \u0026amp; Clear Plus filters manufactured \u003cstrong\u003eafter November 1998\u003c\/strong\u003e. It is not compatible with the original pre-1998 Clean \u0026amp; Clear (non-Plus) series, which used a different tank design. Check the date code or model label on your filter before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003eThe tank bottom is the lower pressure vessel shell of the Clean \u0026amp; Clear Plus filter. It houses the cartridge elements and mates to the tank top half, sealing via a large O-ring and secured with a clamp band around the perimeter. When a tank bottom develops cracks, stress fractures, or irreparable damage from UV exposure or physical impact, this OEM assembly restores the filter housing to factory condition.\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\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e178578\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eAlmond (\u003ca href=\"\/products\/pentair_178560\"\u003eGray version: 178560\u003c\/a\u003e)\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\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eTank Bottom Assembly — lower housing shell only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eEach (1)\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\u003eCompatible Filter Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair Clean \u0026amp; Clear Plus (manufactured after November 1998)\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\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eEquipment Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eModel \/ Part 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;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eClean \u0026amp; Clear Plus Filter 240 sq. ft.\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eCLEAN \u0026amp; CLEAR PLUS 240\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eManufactured after 11\/98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eClean \u0026amp; Clear Plus Filter 320 sq. ft.\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eCLEAN \u0026amp; CLEAR PLUS 320\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eManufactured after 11\/98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eClean \u0026amp; Clear Plus Filter 420 sq. ft.\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eCLEAN \u0026amp; CLEAR PLUS 420\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eManufactured after 11\/98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eClean \u0026amp; Clear Plus Filter 520 sq. ft.\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eCLEAN \u0026amp; CLEAR PLUS 520\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eManufactured after 11\/98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eCompatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eWhen replacing the tank bottom, inspect your clamp band and tank O-ring at the same time — both are inexpensive and routinely deteriorate alongside the housing. Replacing them during the same service visit prevents a return leak and a second disassembly. Verify the date code on your filter's data label before ordering to confirm your unit falls within the post-November 1998 production window.\u003c\/p\u003e\u003c!-- wft:processed:manual:2026-03-30 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":51774056759571,"sku":"178578","price":536.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/PEN178578_0.jpg?v=1747697367","url":"https:\/\/poolaroo.com\/products\/pentair-clean-clear-plus-tank-bottom-almond-178578","provider":"Poolaroo","version":"1.0","type":"link"}