Union, Male/Female Type; 40 Mil Gray PVC Exterior, 2 Mil Red Urethane Interior Coated Aluminum Material; 3.38 Inch; Ul 886, Csa C22.2 Approval; 1.58 Inch Diameter; 1/2 Inch Trade Size; .5 Trade Size In Inch; REDH2OT. Brand; Applicable Standard Nec/Cec