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 1.78 in Deflated Length 4 in For Maximum Pipe Inside Diameter 1.5 in For Maximum Pipe Size 1 1/2 in For Minimum Pipe Inside Diameter 1.49 in For Minimum Pipe Size 1 1/4 in Head Tether Connection Handle and Chain Inflated Length 5.63 in