Drainage Flap Valve, Non Return With Universal Connection 72mm 100mm

Installed at the end of universal 72-100mm sanitary sewage pipes leading storm water to rivers; Prevents against rodents entering building interiors through the sewage and other sanitary systems; Secure the lower floors against flooding caused by back flow of storm water and sewage; High quality PVC Plastic and stainless steel ending, sun light/high temperature resistance, Weight: 0.771617917 pounds, Manufacturer: Karmat