Cooker Hood Non-Return Valve, Removable Spring-Loaded Stainless Steel Exhaust Valve, High Density Silicone Ring for 150-180mm Exhaust Ducts

Odor Elimination: Simply open the check valve and the exhaust vent will automatically open to expel smoke through the exhaust. One-Way Check Valve: Because this check valve only works in one direction, once closed it reliably traps odors and mosquitoes and prevents smoke from returning. Quick Seal: The check valve quickly reseals after the smoke has been expelled; the silicone sealing ring ensures a tight seal. High-Quality Construction: The check valve is made entirely of ABS material and features a built-in sturdy stainless steel spring for optimal performance. Easy Installation: The check valve is designed for quick installation. The main body and mounting seat are removable. Specifications: Product Type: Range Hood Check Valve; Material: ABS, Stainless Steel, Silicone; Suitable for Pipe Diameters: Approx. 150–180mm / 5.9–7.1in. Package contents: 1 x cooker hood backflow preventer, 2 x cable ties, 1 x steel rod