Cherne Underground Test Ball Plug, Multi-Size 8" to 12"

The 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-plus single-size plugs.

• 8-inch to 12-inch
• 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 provides great sealing properties as well as excellent expansion and memory