Test-Ball Plug Air Connection Gender Male Air Connection Size 1/4 in Air Connection Type Snifter Valve Body Surface Style Smooth Bypass Connection Size Not Applicable Bypass Connection Type Not Applicable Bypass Thread Gender Not Applicable Deflated Diameter 12 in Deflated Length 43 in For Maximum Pipe Inside Diameter 20.7 in For Maximum Pipe Size 20 in For Minimum Pipe Inside Diameter 19.6 in Head Tether Connection Tether Channel Inflated Length Not Applicable