2-Pack Kitchen Cooker Hood Backflow Check Valve, Stainless Steel Spring Exhaust Valve with Silicone Seal Ring for 150-180mm Duct

Eliminate Odors: Simply open the check valve and it automatically opens the exhaust valve to discharge smoke through the exhaust air. One-Way Check Valve: Since this check valve is one-way, it can tightly block outside odors and mosquitoes after closing, and smoke will not flow back. Quick Sealing: The check valve can be quickly sealed after discharging smoke, and the silicone sealing ring can hold it tightly without leaving any gap. Careful Workmanship: The check valve is made of ABS material overall, with a built-in solid stainless steel spring, offering excellent performance. Easy Installation: The check valve is designed to improve the level, and the main body and fixed seat can be disassembled to speed up installation. Specification: Item Type: Kitchen Hood Check Valve Material: ABS, Stainless Steel, Silicone Suitable for Duct Diameter: approx. 150-180mm / 5.9-7.1 inches Package List: 1 x Kitchen Hood Check Valve 2 x Cable Ties 1 x Steel Rod