{"product_id":"stainless-steel-check-valve-one-way-non-return-29x22mm-anti-backflow","title":"304 Stainless Steel Check Valve 29×22mm | One-Way Non-Return","description":"\n\u003ch2\u003e304 Stainless Steel One-Way Check Valve – 29×22mm\u003c\/h2\u003e\n\u003cp\u003eKeep your plumbing system flowing in the right direction with this heavy-duty \u003cstrong\u003e304 stainless steel check valve\u003c\/strong\u003e. Designed for reliable one-way (non-return) flow control, this compact 29×22mm valve prevents backflow and protects your water supply lines, water heaters, water towers, toilets, and general plumbing installations. Built to last, it's an essential fitting for any home or commercial plumbing setup.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium 304 Stainless Steel\u003c\/strong\u003e – Corrosion-resistant construction for long-lasting durability in wet environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOne-Way Flow Control\u003c\/strong\u003e – Allows water to flow in one direction only (female thread inlet → male thread outlet), effectively preventing backflow and contamination\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Size\u003c\/strong\u003e – 29×22mm footprint fits neatly into tight plumbing spaces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application\u003c\/strong\u003e – Ideal for water towers, water heaters, toilets, irrigation lines, and general water pipe installations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation\u003c\/strong\u003e – Threaded connections for quick and secure fitting into existing pipework\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand New\u003c\/strong\u003e – Supplied in original packaging, ready to install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e29 × 22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Direction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFemale thread (inlet) → Male thread (outlet)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne-Way Non-Return Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e Please confirm the correct size and flow direction before installation. Flow is \u003cem\u003eunidirectional\u003c\/em\u003e — from female thread to male thread. Installing the valve in reverse will restrict water flow. Please allow 1–5mm measurement tolerance due to manual sizing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Monitor color calibration may cause slight variation between product photos and the actual item. Please consider the physical product as the color standard.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Need\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-inch-threaded-brass-ball-valve-water-gas-oil-flow-control\"\u003e1-Inch Threaded Brass Ball Valve – Water, Gas \u0026amp; Oil Flow Control\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-1-4-inch-adjustable-washbasin-siphon-trap-leak-proof-silicone-seal\"\u003e1-1\/4\" Adjustable Washbasin Siphon Trap | Leak-Proof Silicone\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAuthoritative Plumbing Resource\u003c\/h3\u003e\n\u003cp\u003eFor guidance on safe plumbing practices and backflow prevention in residential water systems, visit the \u003ca href=\"https:\/\/www.epa.gov\/ground-water-and-drinking-water\/basic-information-about-your-drinking-water\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Environmental Protection Agency – Drinking Water Basics\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a check valve and what does this stainless steel one-way valve do?\u003c\/h4\u003e\n\u003cp\u003eA: A check valve (also called a non-return valve) allows water to flow in only one direction, preventing backflow that could contaminate clean water supplies or damage appliances. This 304 stainless steel check valve directs flow from the female thread inlet to the male thread outlet only, making it ideal for water heaters, toilets, water towers, and general plumbing lines.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What pipe size does this check valve fit?\u003c\/h4\u003e\n\u003cp\u003eA: This valve measures 29×22mm overall. Please verify your pipe thread dimensions against these measurements before purchasing to ensure a proper fit. A 1–5mm manufacturing tolerance applies.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this check valve suitable for outdoor or corrosive environments?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The valve is made from 304 stainless steel, which is highly resistant to rust and corrosion, making it suitable for both indoor and outdoor water plumbing applications where moisture is present.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I install this one-way non-return valve correctly?\u003c\/h4\u003e\n\u003cp\u003eA: Thread the female end (inlet) to your water supply line and the male end (outlet) toward your appliance or destination pipe. Always confirm the flow direction arrow (if present) matches your intended water flow before tightening. Installing in reverse will block water flow.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a check valve and what does this stainless steel one-way valve do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A check valve (also called a non-return valve) allows water to flow in only one direction, preventing backflow that could contaminate clean water supplies or damage appliances. This 304 stainless steel check valve directs flow from the female thread inlet to the male thread outlet only, making it ideal for water heaters, toilets, water towers, and general plumbing lines.\"}}, {\"@type\": \"Question\", \"name\": \"What pipe size does this check valve fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This valve measures 29×22mm overall. Please verify your pipe thread dimensions against these measurements before purchasing to ensure a proper fit. A 1–5mm manufacturing tolerance applies.\"}}, {\"@type\": \"Question\", \"name\": \"Is this check valve suitable for outdoor or corrosive environments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The valve is made from 304 stainless steel, which is highly resistant to rust and corrosion, making it suitable for both indoor and outdoor water plumbing applications where moisture is present.\"}}, {\"@type\": \"Question\", \"name\": \"How do I install this one-way non-return valve correctly?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Thread the female end (inlet) to your water supply line and the male end (outlet) toward your appliance or destination pipe. Always confirm the flow direction arrow (if present) matches your intended water flow before tightening. Installing in reverse will block water flow.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home \u0026 Living\", \"item\": \"https:\/\/oasis-select.com\/collections\/home-living\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"304 Stainless Steel Check Valve 29×22mm | One-Way Non-Return\", \"item\": \"https:\/\/oasis-select.com\/products\/stainless-steel-check-valve-one-way-non-return-29x22mm-anti-backflow\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Copper tone","offer_id":47748143775849,"sku":"14:10#Copper tone","price":7.68,"currency_code":"USD","in_stock":true},{"title":"Electroplated color","offer_id":47748143808617,"sku":"14:29#Electroplated color","price":7.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S0dc3f39482ec4116beb8b3cb9217ee45E.webp?v=1783081686","url":"https:\/\/oasis-select.com\/products\/stainless-steel-check-valve-one-way-non-return-29x22mm-anti-backflow","provider":"Oasis Select","version":"1.0","type":"link"}