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. 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.
Features
- Use to block flow (water DWV test) or as a back plug for sewer air testing
- Seals both round and out-of-round pipe
- Zinc plated steel chain and ring handle acts as an anchor to prevent plug from sliding down a line
- Natural rubber - great sealing properties as well as excellent expansion and memory
- Cherne® multi-size plumbing Test-Ball® plugs have the same great features as our original test ball plugs, with the added benefit that one size fits multiple pipe diameters, doing the job of 2+ single-size plugs
- Schrader valve inflator includes cap with valve core tightener
- Ring and chain assembly prevents plug from dropping into DWV system during test
- Removable chain
- Molded in valve inflation thread
- 2.64 in dia deflated
- 5.18 in L deflated
- 40 psi inflation pressure
- 17 psi maximum back pressure
