Oatey 33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch, Red

End-of-pipe plug seals or holds pressure to test piping system
Plugs open-ended 4 in. pipes
Made with ABS glass-reinforced plates for added strength
Mechanically seals only at the end of a pipe, preventing plug from falling into stack
Rated for 17 PSI or 40 ft. of head pressure
Can be used in long-term applications
Plastic plug body will not rust or corrode
Natural, chemical-resistant rubber O-ring for excellent expansion and memory
Zinc-plated steel handle
Galvanized carriage bolt to prevent corrosion