Threaded Coupling, Aluminum, Trade Size 3 1/2 in, Overall Length 3 13/32 in, Finish Plain, Insulated No, Compatible Conduit Type RMC, Thread Size 3 1/2 In.-8, Thread Type NPT, Thread Gender Female to Female, Conduit Fitting Type Coupling, Standards UL 6A, ANSI C80.5, For Use With IMC, For Conduit Type RMC, Overall Height 3 13/32 in, Weight 1.08 lb, Color Silver, Compatible Conduit Trade Size 3 1/2 in, Concrete Tight Yes, Connection Orientation Straight, Connection Type Threaded