Cherne® Inside of Pipe Gripper® Plugs can be used in applications including DWV (drain, waste and vent) testing and stack testing. Inside-of-pipe design allows location of the plug inside the pipe.

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 pipe as far as needed

 Equipped with:

• Easy-to-install extra large zinc wing nut – won’t rust

• Natural rubber o-ring 

• Galvanized carriage bolt to prevent corrosion