Long Test-Ball Plugs are designed for waste stack testing. Ring and chain assembly help prevent the plug from being drawn into the DWV plumbing system during testing. Inflation Thread: Tank Valve. Usage Range: 1.75″-2.25″.

Up for sale is a brand new Cherne 271020 2″ Long Test-Ball Pneumatic Pipe Plug. This premium plumbing test ball comes equipped with an inflation hose and is engineered specifically for testing multiple stories at once from a single stack cleanout. Designed to seal the rise and run of magnetic or plastic DWV piping systems, it handles up to 13 PSI (30 feet of head pressure).