Pipe Plug Bypass Connection Size Not Applicable Bypass Connection Type Not Applicable Bypass Thread Gender Not Applicable For Maximum Pipe Inside Diameter 17.75 in For Minimum Pipe Inside Diameter 17.25 in For Pipe Size 18 in Handle Material Not Applicable Included Water Fill Port/Hose Not Applicable Maximum Back Pressure (Air) 0 psi Overall Height 16.75 in Padlock Shackle Diameter Not Applicable Plate Material Aluminum Plug Seal Location End of Pipe Plug Seal Material Neoprene