{"product_id":"pentair-manual-air-valve-pacfab-purex-clamp-261003","title":"Pentair Manual Air Valve with Clamp | Nautilus D.E. Filter | 261003","description":"\u003cp\u003eThe Pentair Manual Air Valve (261003) is the OEM replacement manual air relief assembly for Pentair Nautilus pool and spa D.E. filter models NS24, NS36, NS48, NS60, NS72 — originally manufactured under the PacFab and Purex brands, now part of the Pentair portfolio.\u003c\/p\u003e\n\n\u003cp\u003eThis manual air relief assembly releases trapped air from the filter tank, maintaining proper water flow and filtration efficiency. A correctly functioning air relief valve allows you to purge air from the system at startup and after backwashing — keeping your D.E. filter operating at rated pressure.\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;\"\u003e261003\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #ffffff;\"\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;\"\u003eManual Air Relief Valve Assembly with Clamp\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\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e8-3\/4 in. L × 4-1\/4 in. H × 4-1\/4 in. W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #ffffff;\"\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\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 Equipment\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair Nautilus D.E. Filter — NS24, NS36, NS48, NS60, NS72\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #ffffff;\"\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eLegacy Brand\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePacFab \/ Purex (now Pentair)\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePoolaroo Pro Tip\u003c\/h3\u003e\n\u003cp\u003eWhen replacing the air relief valve, inspect the clamp and any associated O-rings or gaskets at the same time. A worn clamp or degraded seal at the valve seat is a common source of air leaks that can cause the filter to lose prime or run at reduced efficiency. Replacing all sealing components together as a single service keeps the filter running reliably until the next scheduled maintenance interval.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-30 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52770062467347,"sku":"261003","price":125.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-pacfab-purex-manual-air-valve-clamp-261003.webp?v=1767394147","url":"https:\/\/poolaroo.com\/products\/pentair-manual-air-valve-pacfab-purex-clamp-261003","provider":"Poolaroo","version":"1.0","type":"link"}