Test Plug, Air Connection Gender Female, Air Connection Size 23/64 in, Air Connection Type NPT, Body Surface Style Smooth, Deflated Diameter 2.67 in, Deflated Length 9 in, For Maximum Pipe Inside Diameter 4 in, For Maximum Pipe Size 4 in, For Minimum Pipe Inside Diameter 0.38 in, For Minimum Pipe Size 3 in, Head Tether Connection Handle and Strap, Inflated Length 12 in, Maximum Back Pressure (Air) 57 psi, Maximum Back Pressure (Water) 30 ft of head, Number of Inflation Chambers 1 WARNING: This product can expose you to chemicals including Isoprene, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov. - 1,3-Butadiene