Designed for optimal performance, this check valve is suitable for maintaining proper airflow in kitchen exhaust systems. It prevents backflow, ensuring that your kitchen remains keep from unwanted smells and . The valve's sturdy construction ensures use, making it a reliable choice for any kitchen setup. Features -Color:White -Material:Plastic -Size:13.50X13.00X13.00cm/5.31X5.11X5.11in -Suitable for 75-110mm diameter exhaust -Efficient backflow blockage: the dual flap design of the check valve effectively blocks backflow, protecting your range hood -Simple installation: easily install the check valve by connecting it to the exhaust duct, ensuring a quick setup -Robust construction: made from plastic, this valve is built to last, providing longterm reliability -Multiple applications: suitable for use in kitchens, bathrooms, and other areas requiring ventilation -Clean air assurance: the valve prevents outdoor smells from entering, keeping your kitchen and fresh Package list: 2 x check valve