About This Layered Protection Against Sewage Backflow: this PVC backwater valve is an effective backflow preventer valve that specifically designed to protect your premises from the potential threats of sewer backflow; It delivers reliable protection and peace of mind with its excellent functionality Easy to Use: backwater valves are generally simple in design, easy to install and require no additional maintenance; After installed, they function automatically without human intervention Sturdy Durable Construction: our backwater preventer valve is crafted from quality PVC material; This solid PVC backwater valve resists corrosion and ensures minimal wear and tear even with regular use Affordable: compared to other devices that prevent sewage backflow, the PVC backwater valve is usually more affordable and is a nice option Wide Applicability: due to the corrosion resistance and durability of the PVC material, the PVC backwater valve is suitable for a variety of drainage systems, including domestic, commercial and industrial environments; Irrigation, household, horticulture, industry, agriculture, construction, agriculture, water treatment and swimming pools, etc Overview Material : Pvc Brand : Tondiamo Item dimensions L x W x H : 10.63 x 7.28 x 7.09 inches Exterior Finish : PVC Inlet Connection Size : 4 Inches Inlet Connection Type : Flange Outlet Connection Type : Flange Outlet Connection Size : 4 Inches Manufacturer : Tondiamo