{"product_id":"swimables-sw-26-855-fns-plus-nautilus-style-3-4-stainless-steel-air-vent-durable-and-debris-resistant","title":"Swimables | SW-26-855 | FNS Plus \/ Nautilus™ Style 3\/4″ Stainless Steel Air Vent – Durable and Debris‑Resistant","description":"\u003cp data-start=\"105\" data-end=\"165\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eThe SW‑26‑855 3\/4″ stainless steel air vent strainer is a direct replacement for OEM part 172855, designed for FNS, Nautilus, and Nautilus Plus DE filters. It allows trapped air to escape while preventing debris from entering the air relief system—ensuring safe, efficient, and long-lasting filtration performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"167\" data-end=\"170\"\u003e\n\u003cp data-start=\"172\" data-end=\"189\"\u003e\u003cstrong data-start=\"172\" data-end=\"189\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"191\" data-end=\"680\"\u003e\n\u003cli data-start=\"191\" data-end=\"270\"\u003e\n\u003cp data-start=\"193\" data-end=\"270\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"41\" data-is-only-node=\"\"\u003eDirect OEM Replacement (Part 172855):\u003c\/strong\u003e Precisely matches specifications of Pentair 172855—guaranteeing compatibility with FNS, Nautilus, and Nautilus Plus DE filters.\u003c\/span\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"271\" data-end=\"350\"\u003e\n\u003cp data-start=\"273\" data-end=\"350\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"33\" data-is-only-node=\"\"\u003eStainless Steel Construction:\u003c\/strong\u003e 3\/4″ body resists corrosion and pool chemicals for reliable long‑term use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"351\" data-end=\"430\"\u003e\n\u003cp data-start=\"353\" data-end=\"430\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"24\" data-is-only-node=\"\"\u003eTwo‑Function Design:\u003c\/strong\u003e Allows air to escape freely while blocking debris from entering the vent system, supporting consistent filter operation.\u003c\/span\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"431\" data-end=\"512\"\u003e\n\u003cp data-start=\"433\" data-end=\"512\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"18\" data-is-only-node=\"\"\u003ePrecision Fit:\u003c\/strong\u003e Engineered for easy, secure installation and a snug fit within compatible filter tanks.\u003c\/span\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"513\" data-end=\"596\"\u003e\n\u003cp data-start=\"515\" data-end=\"596\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"26\" data-is-only-node=\"\"\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Weighs approximately 0.05 lb for convenient handling and storage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"597\" data-end=\"680\"\u003e\n\u003cp data-start=\"599\" data-end=\"680\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"33\" data-is-only-node=\"\"\u003eEssential for System Balance:\u003c\/strong\u003e Keeps internal tank pressure regulated and ensures efficient water circulation.\u003c\/span\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"682\" data-end=\"685\"\u003e\n\u003cp data-start=\"687\" data-end=\"1146\"\u003e\u003cstrong data-start=\"687\" data-end=\"708\"\u003eProduct Overview:\u003c\/strong\u003e\u003cbr data-start=\"708\" data-end=\"711\"\u003eThe SW‑26‑855 air vent strainer serves a critical function in DE-style pool filters by enabling trapped air to escape while preventing contaminants from entering the air relief pathway. Crafted from high-quality stainless steel, this 3\/4″ strainer offers outstanding corrosion resistance and durability. It’s a reliable, OEM-spec replacement for Pentair part 172855, perfectly suited for FNS, Nautilus, and Nautilus Plus filter models.\u003c\/p\u003e\n\u003cp data-start=\"1148\" data-end=\"1433\"\u003eWhether you're replacing a worn-out component or stocking spare parts, the SW‑26‑855 ensures your filtration system maintains proper pressure balance and uninterrupted flow. Its precise fit and robust design make it a simple yet invaluable addition to your pool maintenance essentials.\u003c\/p\u003e","brand":"Swimables","offers":[{"title":"Default Title","offer_id":50593630617912,"sku":"SW-26-855","price":21.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/SW-26-855.jpg?v=1777920017","url":"https:\/\/appaetechpoolsupply.com\/products\/swimables-sw-26-855-fns-plus-nautilus-style-3-4-stainless-steel-air-vent-durable-and-debris-resistant","provider":"AppaeTech Pool Supply","version":"1.0","type":"link"}