Plastic End Of Pipe Plug With Galvanized Screw And Wing Nut For 4 Inch Red Pipes, ABS Glass Reinforced Plate For Extra Strength, Mechanically Seals Only At Pipe End To Prevent Falling Into Stack, 17 PSI Or 40 Ft Head Pressure, Piping System Test Plug

Red 4-Inch End-of-Pipe Plug, Single Unit
✔️ 4 in end-of-pipe plug, ABS body, wing nut, 17 PSI rating

End-of-pipe plugs seal the end of a 4 inch pipe to hold pressure during piping tests, keeping the system safe while checking for leaks in both residential and commercial runs. This plug uses ABS with reinforced plates and a rubber O-ring for a strong, reliable seal.

✅ Fits 4 in (100 mm) pipes with ABS body and reinforced plates for strength
✅ Mechanically expands to seal the pipe end and prevent the plug from dropping into the stack
✅ Rated for 17 PSI or 40 ft head pressure for leak testing
✅ Rubber O-ring offers good expansion memory and chemical resistance
✅ Zinc-plated handle and galvanized carriage bolt resist corrosion
✅ Includes galvanized screw and large wing nut for easy, tool-free installation

💡 What is a seal plug used for in piping pressure testing? This handy device blocks the end of a pipe to hold pressure and check for leaks during tests.
- Compatible with 4 in pipes and rated for 17 PSI
- Easy installation with a large wing nut and galvanized hardware
- ABS body with rubber O-ring provides reliable sealing