Steel Union, Male to Female, 3 1/2 in

Steel Union, Thread Gender Male to Female, Trade Size 3 1/2 in, Ends – Hazardous Fittings 3 1/2 in FNPT x 3 1/2 in MNPT, Overall Length 4 1/4 in, Outside Diameter 4.56 in, Overall Width 4 7/16 in, Weight 4.48 lb, Steel, Finish Zinc Plated, Hazardous Location Rating Class I, Divisions 1 and 2, Groups C, D, Class II, Divisions 1 and 2, Groups E, F, G, Class III, Divisions 1 and 2, UNF, For Use With IMC, Rigid Conduit, Threaded Conduit, Conduit Fitting Type Union, Connection Orientation Straight