Cherne® 276468 Test-Ball® Multi-Size Pneumatic Plumbing Plug, 4 to 6 in Nominal, 40 ft Head, 3.4 to 6.25 in Range, Natural Rubber

Cherne® plumbing Test-Ball® plugs were first introduced in 1953 as a more versatile product than traditional mechanical plugs. designed to test drain, vent and waste systems. Cherne Test-Ball® plugs could be used in any type of pipe, could be inserted through a test tee, and sealed out of round pipe as well. Cherne introduced the multi-size yellow-top Test-Ball® plugs in 2002. These test ball plugs have the same great features found in the original test ball plugs, but can be used in more than one pipe size.