4" Cherne Gripper Locking Plug, Sch40

Cherne's Gripper plugs can be used in a variety of applications including DWV (drain, waste, and vent) testing and stack testing. End-of-Pipe design won't fall in, whereas the Inside-of-Pipe design allows you to locate the plug inside the pipe as far as you need. Time tested, the Gripper- remains one of the most popular mechanical plugs on the market.

Original Gripper- Plug Features:
- Ideal for sewer testing and long-term applications
- Made with glass-reinforced ABS plastic
- End-of-pipe design seals only at the end of a pipe
- Inside-of-pipe design seals inside the pipe as far as needed
- 17 PSI Rating

Equipped with:
- Chemical and petroleum-resistant Estaloc-plastic top and bottom plates
- Petroleum resistant nitrile o-ring
- Stainless steel carriage bolt