Test Plug, Pneumatic, Nominal Size 3 In. to 4 In., Min. Dia. 0.38 In., Max. Diameter 4 In., Max. Back Pressure 30 ft. of Head, Required Inflation Pressure 57 psi, Deflated Size 9 In.L x 2.50 In.D, Material Rubber, For Use In Rigid Pipes
This safe-t-seal test plug fits 3-Inch to 4-Inch pipes. Its non-slip rubber with smooth body is used to test water lines in new construction and renovation projects. It has a patented pressure release safety valve to help prevent over inflation or blow-out.