Conduit Nipple, Aluminum Material; 40 Mil Gray PVC Coated Exterior, 2 Mil Red Urethane Coated Interior Finish; 3 1/2 Inch; 3 1/2 Length In Inch; 25 Standard Package; 1 Inch Trade Size; 1 Trade Size In Inch; Threaded End Type; Plasti-Bond REDH2OT[R] Brand