Plug Air Connection Gender Male Air Connection Size 1/4 in Air Connection Type Tire Valve Body Surface Style Smooth Bypass Connection Size 2 in Bypass Connection Type NPT Bypass Thread Gender Male Deflated Diameter 6.41 in Deflated Length 28 in For Maximum Pipe Inside Diameter 16.25 in For Maximum Pipe Size 16 in For Minimum Pipe Inside Diameter 7.5 in For Minimum Pipe Size 8 in Head Tether Connection Bracket Tag Inflated Length Not Applicable Maximum Back Pressure (Air) 15 psi