The kitchen backflow valve is an essential accessory for maintaining a clean cooking environment. Its robust construction ensures performance, and it is easy to install in your range hood duct system. This anti-reverse valve effectively blocks the return of and fumes, enhancing the overall air in your kitchen. Features - Color: White -Material:ABS - Size: 21.00X20.00X8.60cm/8.25X7.86X3.38in -High efficiency backflow prevention: the kitchen backflow valve and range hood antireturn valve ensure efficient prevention of backflow, keeping your kitchen -Sturdy: constructed with sturdy materials, these valves are resistant to high temperatures, ensuring durability -Userfriendly installation: these parts are designed for straightforward installation, requiring no assistance, making the process quick -Versatile application: compatible with a wide range of range hood models, these accessories are ideal for use in various kitchen settings -Cleaner kitchen : helps minimize residue on kitchen surfaces, ensuring a cleaner and more pleasant cooking environment Package list: 1 outlet 4 x screws