This product is a check valve, made of solid materials, safe and . It can last for a long time without being easily damaged. The product is an excellent Non Return Check Valve that can bring you more convenience, allowing you to have comfortable experience. Features -Color:Grey -Material:PVC -Size:10.10X5.50X5.50cm/3.97X2.16X2.16in Inner diameter:25mm Outer diameter:33.8mm -Made of sturdy PVC material, this check valve is designed for long-lasting use and durability. -The plumbing check valve can prevent water flow and ensure smooth and consistent water flow. -With a quick-connect design, this Backflow Prevention Valve is easy to install and require no special tools or expertise. -Suitable for use in residential, industrial, and agricultural settings, the One Way Check Valve offers versatile and reliable performance for a variety of applications. -Adopts precision production to the stable characteristics and high reliability. Package list: 1 x check valve