Oatey Cherne 4 In. Test-Ball Plug

Single-Size Test-Ball Plug.

Expandable rubber test plug designed to test drain, vent, and waste systems in every type of pipe.

Utilizing a standard tire air fitting for easy connections, its inflatable design can be inserted through a test tee to seal out-of-round pipe and hard-to-access openings.

These plumbing test plugs are available in a variety of nominal sizes to accommodate your DWV testing needs.