Cherne 270-016 Test Ball Plug 1.25-1.5 Inch 30-40mm

Cherne 270-016 Test Ball Plug is a single-size pneumatic plug designed for DWV testing on 1-1/4" to 1-1/2" piping, with a nominal size of 1.25"–1.5" (30–40 mm) and a use range of 1.17"–1.75" (30–44 mm). The plug inflates via a molded-in valve and supports up to 40 psi of inflation pressure while standing up to about 13 psi of backpressure (test head about 30 ft), making it suitable for air- or water-based pressure tests of residential drainage systems. Constructed from natural rubber with a zinc-plated chain, the unit has a deflated length around 5.5 inches and a deflated diameter near 1.1 inches, and is offered as a single-size Cherne Test-Ball plug with chain/tether options; common applications include sealing DWV lines during pressure tests and blocking during installation or repair. This model is part number 270-016 and is widely used for residential plumbing DWV testing.