Cherne® Single-Size Test-Ball® Plugs are designed to test drain, vent and waste systems in every type of pipe. They also can be inserted through a test tee to seal out-of-round pipe. Cherne Industries is a global leader in pipe plug, blocking and testing.
What are gripper plugs used for?
The Cherne® 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.