{"product_id":"pentair_178582","title":"Pentair Tank Lid Assembly 520 sq. ft. | Clean \u0026 Clear Plus \/ Quad D.E. Filter | 178582","description":"\u003cp\u003eThe Pentair Tank Lid Assembly (178582) is the OEM replacement lid for the Clean \u0026amp; Clear Plus 520 sq. ft. cartridge filter and the Quad D.E. 100 filter. If your filter lid is cracked, warped, or no longer seals correctly, this is the direct replacement part.\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: MANUFACTURING DATE APPLIES — CLEAN \u0026amp; CLEAR PLUS 520\u003c\/strong\u003e\u003cbr\u003e\nThis lid assembly is correct for Clean \u0026amp; Clear Plus 520 sq. ft. filters manufactured after November 1998. If your filter was manufactured before that date, verify the part number on your existing lid before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003eThe tank lid assembly seals the top of the filter tank, maintaining system pressure and preventing water loss during filtration. A damaged or improperly seating lid allows air infiltration and pressure loss, reducing filtration efficiency and potentially causing pump cavitation. Replacing the lid assembly restores a proper pressure-tight seal at the tank opening.\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;\"\u003e178582\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eTank Lid Assembly, 520 sq. ft.\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 Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eTank Components\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;\"\u003e1 (Each)\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 — 520 sq. ft. Cartridge Filter\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;\"\u003eFilters manufactured after 11\/98 only. Verify manufacturing date before ordering.\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;\"\u003eQuad D.E. Filter 100 — Quad D.E. Series\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eQuad 100\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eLid for Quad 100\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\u003eBefore installing the new lid, inspect the lid O-ring seat on the tank collar for cracks or debris — a damaged seat will prevent even a new lid from sealing correctly. If the lid O-ring is not included or shows any deformation, replace it at the same time to avoid a return service call. Match the part number molded or stamped on your existing lid to confirm 178582 is the correct replacement before ordering.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-03 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53912388370707,"sku":"178582","price":395.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/PEN178582_0.jpg?v=1772793966","url":"https:\/\/poolaroo.com\/products\/pentair_178582","provider":"Poolaroo","version":"1.0","type":"link"}