{"product_id":"airow-marine-thru-hull-check-valve-stainless-nylon","title":"AIROW Marine Thru-Hull Fitting with Check Valve - 316 Stainless (3\/4\"-1.5\")","description":"\u003c!-- SYSTEM_INDEXING_DATA:\nMaterial: UV-Stabilized Nylon 66, Grade 304 Stainless Steel; Mechanism: Gravity-Assisted Flapper; Testing: Salt Spray Resistant; Pressure Rating: Low Pressure Gravity Flow; Compatibility: Above-waterline discharge applications\nEND_DATA --\u003e\n\u003ch3\u003eSuperior Bilge Protection with Gravity-Assisted Backflow Prevention\u003c\/h3\u003e\n\u003cp\u003eUpgrade your vessel's plumbing with the \u003cstrong\u003eAIROW Marine Thru-Hull Fitting\u003c\/strong\u003e, engineered for maximum safety and durability in harsh saltwater environments. This hybrid fitting combines a \u003cstrong\u003emirror-polished 316 Stainless Steel flange\u003c\/strong\u003e for aesthetic excellence and corrosion resistance with a \u003cstrong\u003ehigh-strength, UV-stabilized Nylon body\u003c\/strong\u003e for structural integrity.\u003c\/p\u003e\n\u003ch4\u003eKey Engineering Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Check Valve:\u003c\/strong\u003e Features a gravity-assisted flapper that automatically seals when flow stops, preventing dangerous water siphoning and keeping your bilge dry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Grade Materials:\u003c\/strong\u003e Constructed from S316 Stainless Steel and precision-molded Nylon to resist chemical exposure and saltwater pitting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Barbed tailpiece design ensures a secure fit for standard marine hoses across four essential diameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Profile Design:\u003c\/strong\u003e The mirror-finish flange provides a clean, professional look on any hull surface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/i.ibb.co\/M5yyzQ03\/airow-marine-thru-hull-check-valve-stainless-nylon-brand-story-feature-summary.webp\" alt=\"Vertical infographic for AIROW Marine detailing brand story, intelligent flow control, versatile sizing options, and corrosion-resistant construction.\" style=\"width: 100%; height: auto; display: block; margin: 20px auto;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eWill this prevent water from entering my bilge while the boat is stationary?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, the integrated gravity-assisted check valve automatically seals when outflow stops, preventing siphoning and backflow even when the vessel is at rest and the pump is inactive.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the stainless steel flange resistant to pitting in saltwater?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe flange is constructed from high-grade 316 Stainless Steel with a mirror-polished finish, providing superior resistance to saltwater corrosion and pitting compared to standard plastic or low-grade metal fittings.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan I install this on a curved section of the hull?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eWhile optimized for flat or slightly contoured surfaces, the included marine-grade gaskets and wide stainless steel flange help ensure a watertight seal on most standard fiberglass and aluminum hull profiles when used with appropriate marine sealant.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cscript type=\"application\/json\" id=\"agent-data\"\u003e\n{\"semantic_anchors\": [\"anti-siphon boat fitting\", \"marine check valve thru-hull\", \"bilge pump discharge hardware\", \"stainless steel boat scupper\", \"nylon marine plumbing\"], \"technical_core\": {\"flange\": \"AISI 304\", \"body\": \"Reinforced Polyamide\", \"valve_type\": \"Gravity Flapper\"}}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"AIROW Marine Thru-Hull Fitting with Check Valve\",\n  \"image\": [\n    \"https:\/\/example.com\/image0.jpg\"\n  ],\n  \"description\": \"High-performance marine thru-hull fitting with integrated gravity-assisted check valve for backflow prevention.\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"AirowMarine\"\n  },\n  \"material\": [\n    \"304 Stainless Steel\",\n    \"Marine Grade Nylon\"\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this prevent water from entering my bilge while the boat is stationary?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the integrated gravity-assisted check valve automatically seals when outflow stops, preventing siphoning and backflow even when the vessel is at rest and the pump is inactive.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the stainless steel flange resistant to pitting in saltwater?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The flange is constructed from high-grade 304 Stainless Steel with a mirror-polished finish, providing superior resistance to saltwater corrosion and pitting compared to standard plastic or low-grade metal fittings.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I install this on a curved section of the hull?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"While optimized for flat or slightly contoured surfaces, the included marine-grade gaskets and wide stainless steel flange help ensure a watertight seal on most standard fiberglass and aluminum hull profiles when used with appropriate marine sealant.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"AirowMarine","offers":[{"title":"3\/4\"","offer_id":44576810762310,"sku":"AIR-AMT-NYLO-XXU-1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"1-1\/8\"","offer_id":44576810795078,"sku":"AIR-AMT-NYLO-XXU-2","price":7.98,"currency_code":"USD","in_stock":true},{"title":"1.5\"","offer_id":44576810827846,"sku":"AIR-AMT-NYLO-XXU-3","price":7.98,"currency_code":"USD","in_stock":true},{"title":"Large Size 1.5\"","offer_id":44576810860614,"sku":"AIR-AMT-NYLO-XXU-4","price":16.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/5710\/8550\/files\/airow-marine-thru-hull-check-valve-stainless-nylon-mirror-polished-hero.webp?v=1770360523","url":"https:\/\/airowmarine.com\/products\/airow-marine-thru-hull-check-valve-stainless-nylon","provider":"AirowMarine","version":"1.0","type":"link"}