Mechanical Expansion Plug Bypass Connection Size 1/4 in Bypass Connection Type Barbed Bypass Thread Gender Male For Maximum Pipe Inside Diameter 2.14 in For Minimum Pipe Inside Diameter 1.92 in For Pipe Size 2 in Handle Material Brass Included Water Fill Port/Hose Not Applicable Maximum Back Pressure (Air) 5 psi Maximum Back Pressure (Water) 11.5 ft of head Overall Height 3.87 in Padlock Shackle Diameter Not Applicable Plate Material Zinc-Plated Steel Plug Seal Location End of Pipe