Al Union Thread Gender Male to Female Trade Size 1 in Ends - Hazardous Fittings 1 in FNPT x 1 in MNPT Overall Length 2 7/16 in Outside Diameter 1.75 in Overall Width 1 11/16 in Weight 0.17 lb Aluminum Finish Unfinished Hazardous Location Rating Class I Divisions 1 and 2 Groups A B 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