Cherne by Oatey 276348 3" - 4" Multi-Size Test-Ball Plug

Easily test your DWV plumbing systems with this Cherne by Oatey Test-Ball plug. This plug is perfectly designed to test any type of pipe in drain, waste, and vent systems. It has a usage range of 2 13/16" to 4 1/4". It holds 40' of head pressure, and it has a maximum back pressure of 17 PSI. The inflatable design of this Test-Ball plug allows you to use only one test plug to fit multiple pipe diameters. The natural rubber body provides excellent expansion and acts as a fantastic seal in both round and out-of-round pipes. It has a zinc-plated steel ring and chain assembly to prevent the plug from being drawn into DWV systems, ensuring hassle-free testing. Overall Dimensions: Deflated Length: 5 3/16" Deflated Diameter: 2 5/8"