{"product_id":"kitchen-range-hood-check-valve-150-160-180mm-anti-odor-vent-damper","title":"Kitchen Range Hood Check Valve 150\/160\/180mm Anti-Odor Vent","description":"\n\u003ch2\u003eKitchen Range Hood Check Valve – Anti-Odor Ventilation Damper\u003c\/h2\u003e\n\u003cp\u003eKeep cooking odors, backdrafts, and stale air out of your kitchen and bathroom with this high-performance \u003cstrong\u003eCheck Valve for Range Hoods and Inline Ducting\u003c\/strong\u003e. Designed to fit 150mm, 160mm, and 180mm round duct pipes, this transparent PVC damper shutter works electricity-free — opening automatically when air flows out and sealing shut when the fan is off, preventing reverse airflow and unwanted smells from entering your living space.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're upgrading your kitchen exhaust system, bathroom ventilation, or inline ducting setup, this versatile check valve delivers a reliable, long-lasting seal with minimal maintenance. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransparent Valve Body:\u003c\/strong\u003e Fully clear design lets you visually confirm correct operation at a glance — no guesswork required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Leaf Flap Design:\u003c\/strong\u003e Upgraded twin-page opening mechanism opens faster and allows more efficient airflow than traditional single-flap designs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-Oil Silicone Gasket:\u003c\/strong\u003e Soft silicone washers create a strong, smoke-tight seal, blocking cooking odors and fumes from flowing back into your home.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring-Assisted Closure:\u003c\/strong\u003e Built-in spring mechanism ensures a firm, lasting seal every time the fan shuts off — no sagging or deformation over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Temperature \u0026amp; Flame-Retardant Material:\u003c\/strong\u003e Constructed from durable PVC\/PC thermoplastic resin with superior compressive toughness and high-temperature resistance — outperforming standard ABS plastic.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectricity-Free Operation:\u003c\/strong\u003e Passive design requires no wiring or power source; activates purely by airflow pressure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3 Flexible Installation Styles:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eStyle A (Double-Ended):\u003c\/strong\u003e Connects aluminum foil tube with inner diameter 150mm, 160mm, 170mm, or 180mm.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eStyle B (Double-Ended):\u003c\/strong\u003e Connects PVC pipe with outer diameter of 160mm or 180mm.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eStyle C (Mixed-End):\u003c\/strong\u003e One end outer diameter 160mm or 180mm PVC pipe; other end inner diameter 150mm, 160mm, 170mm, or 180mm.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePVC \/ PC Thermoplastic Resin\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite (transparent body)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePipe Sizes Supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150mm \/ 160mm \/ 180mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone (electricity-free)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKitchen range hoods, bathroom fans, inline ducting, ventilation grilles\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  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Manual measurement may result in a ±1–3cm variance. Colors may vary slightly between monitors and actual product.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\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  \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\u003c\/ul\u003e\n\n\u003ch3\u003eLearn More About Home Ventilation\u003c\/h3\u003e\n\u003cp\u003eProper kitchen and bathroom ventilation is essential for indoor air quality and moisture control. The \u003ca href=\"https:\/\/www.epa.gov\/indoor-air-quality-iaq\/improving-indoor-air-quality\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Environmental Protection Agency (EPA) – Indoor Air Quality\u003c\/a\u003e provides guidance on effective ventilation strategies for healthier homes.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What pipe sizes does this kitchen range hood check valve support?\u003c\/h4\u003e\n\u003cp\u003eA: This check valve is compatible with round ducts and pipes with inner diameters of 150mm, 160mm, 170mm, and 180mm, as well as PVC pipes with outer diameters of 160mm and 180mm, depending on your chosen installation style (A, B, or C).\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this check valve require electricity or wiring to operate?\u003c\/h4\u003e\n\u003cp\u003eA: No — this is a completely passive, electricity-free device. It opens automatically when your range hood or exhaust fan pushes air through, and springs shut when airflow stops, preventing backdrafts and odors from re-entering your home without any electrical connection.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does this check valve prevent cooking odors from coming back?\u003c\/h4\u003e\n\u003cp\u003eA: The valve uses a spring-assisted dual-leaf flap combined with a soft silicone gasket seal. When your range hood is off, the flaps close firmly and the gasket creates an airtight barrier, stopping odors and fumes in the ductwork from flowing back into your kitchen or bathroom.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this check valve suitable for high-temperature kitchen environments?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The valve is manufactured from PC\/PVC thermoplastic resin, which offers strong compressive toughness, high-temperature resistance, and flame-retardant properties — making it well-suited for the heat and humidity of kitchen exhaust systems.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What pipe sizes does this kitchen range hood check valve support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This check valve is compatible with round ducts and pipes with inner diameters of 150mm, 160mm, 170mm, and 180mm, as well as PVC pipes with outer diameters of 160mm and 180mm, depending on your chosen installation style (A, B, or C).\"}}, {\"@type\": \"Question\", \"name\": \"Does this check valve require electricity or wiring to operate?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — this is a completely passive, electricity-free device. It opens automatically when your range hood or exhaust fan pushes air through, and springs shut when airflow stops, preventing backdrafts and odors from re-entering your home without any electrical connection.\"}}, {\"@type\": \"Question\", \"name\": \"How does this check valve prevent cooking odors from coming back?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The valve uses a spring-assisted dual-leaf flap combined with a soft silicone gasket seal. When your range hood is off, the flaps close firmly and the gasket creates an airtight barrier, stopping odors and fumes in the ductwork from flowing back into your kitchen or bathroom.\"}}, {\"@type\": \"Question\", \"name\": \"Is this check valve suitable for high-temperature kitchen environments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The valve is manufactured from PC\/PVC thermoplastic resin, which offers strong compressive toughness, high-temperature resistance, and flame-retardant properties — making it well-suited for the heat and humidity of kitchen exhaust systems.\"}}]}\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\": \"Kitchen \u0026 Dining\", \"item\": \"https:\/\/oasis-select.com\/collections\/kitchen-dining\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Kitchen Range Hood Check Valve 150\/160\/180mm Anti-Odor Vent\", \"item\": \"https:\/\/oasis-select.com\/products\/kitchen-range-hood-check-valve-150-160-180mm-anti-odor-vent-damper\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"1Pc Style C","offer_id":47748254040169,"sku":"183:202170825#1Pc Style C","price":54.14,"currency_code":"USD","in_stock":true},{"title":"1Pc Style B","offer_id":47748254072937,"sku":"183:201036875#1Pc Style B","price":54.14,"currency_code":"USD","in_stock":true},{"title":"1Pc Style A","offer_id":47748254105705,"sku":"183:200982318#1Pc Style A","price":54.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S1ddf6f183ffe46d79ec391b92e37722dx.webp?v=1783082543","url":"https:\/\/oasis-select.com\/products\/kitchen-range-hood-check-valve-150-160-180mm-anti-odor-vent-damper","provider":"Oasis Select","version":"1.0","type":"link"}