Plug Air Connection Gender Male Air Connection Size 1/8 in Air Connection Type Tire Valve Body Surface Style Smooth Bypass Connection Size 1/2 in Bypass Connection Type NPT Bypass Thread Gender Male Deflated Diameter 3.41 in Deflated Length 23 in For Maximum Pipe Inside Diameter 8.25 in For Maximum Pipe Size 8 in For Minimum Pipe Inside Diameter 3.95 in For Minimum Pipe Size 4 in Head Tether Connection Bracket Tag Inflated Length Not Applicable Maximum Back Pressure (Air) 15 psi