Test-Ball® 4" Test Ball Blocking Plug Molded in Valve Removable Chain

• Natural rubber body provides excellent expansion and a great seal in round and out-of-round pipe | Inflatable design can fit through test tees, sanitary tees, floor drains and other hard to access pipe openings | Ideal for testing DWV plumbing systems at pressures up to 13 psi or with 30 ft of head pressure | Utilizes a standard tire air fitting for easy connections | Ring and chain assembly helps prevent the plug from being drawn into DWV systems during tests

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.