OATEY Gripper 4 in. Plastic Mechanical Test Plug

The Oatey 4 in. Mechanical Plastic Test Plug is intended for use to seal piping or to hold pressure while testing the piping system. This plug has a wing nut for easy tightening and removal. Its plastic body will not corrode or rust.|End of pipe gripper plugs are made with ABS glass-reinforced plates for added strength|Extra large zinc wing nut for ease of tightening, no wrench required, and will not rust|Natural rubber O-ring for excellent expansion and memory|Plug is rated for 17 PSI or 40 ft. of head pressure|End-of-pipe seals only at the end of a pipe, preventing plug from falling into stack|Galvanized carriage bolt to prevent corrosion