Mainline Backflow Products Inc.
Mainline Backflow Products manufactures award winning backwater valves that keep sewage from backing up into buildings/homes. We manufacture shallow and extendible valves. New this year are the Greenskin Building Seals designed to keep direct moisture (rain, snow etc) from entering the wall cavity where plumbing, heating and electrical pipes penetrate to the exterior.
Brands: Mainline Full Port Valve
Mainline Straight-Fit Valve
Mainline PressureTest Fittings
Greenskin Buiding Seals