Test Plug Air Connection Gender Male Air Connection Size 1/4 in Air Connection Type NPT Body Surface Style Textured Bypass Connection Size Not Applicable Bypass Connection Type Not Applicable Bypass Thread Gender Not Applicable Deflated Diameter 31 in Deflated Length 28.75 in For Maximum Pipe Inside Diameter 24.25 in For Maximum Pipe Size 24 in For Minimum Pipe Inside Diameter 11.95 in For Minimum Pipe Size 12 in Head Tether Connection Handle and Chain Inflated Length 31 in