Cherne® Test-Ball® Pneumatic Plumbing Plug, Multi-Size, 4 to 6 in Nominal, Natural Rubber
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