Union, Male/Female Type; 40 Mil Gray PVC Exterior, 2 Mil Red Urethane Interior Coated Aluminum Material; 3.69 Inch; Ul 886, Csa C22.2 Approval; 1.89 Inch Diameter; 3/4 Inch Trade Size; .75 Trade Size In Inch; REDH2OT. Brand; Applicable Standard Nec/Cec