Canplas 73009 Backwater Valve with 4-Inch PVC, White Item Description About this item Protection against the backflow of sewage and storm water Compact, lightweight and easy to install All Canplas Backwater valves are socket x socket with all sockets being DWV Acme threads provide positive traction and extra strength Neoprene O-ring effectively seals valve lid ? See more product details ----------------- Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.