Test Plug, Pneumatic, Nominal Size 3 In., Min. Dia. 3.07 In., Max. Diameter 3 In., Max. Back Pressure 13 psi, Required Inflation Pressure 35 psi, Deflated Size 5.57 In. L x 1.78 In. D, Material Rubber, For Use In DWV Plumbing Systems and Seal for Pipe