Haz Loc Flex Coupling, Trade Size 3/4 in, Flex Length 24 in, Overall Length 30 1/4 in, Bronze, Hazardous Location Rating Class I, Division 1 and 2, Groups A, B, C, D, Class II, Division 1 and 2, Groups E, F, G, Class III, Ends - Hazardous Fittings 3/4 in FNPT x 3/4 in MNPT, Thread Gender Female to Male, Application For Use In Hazardous Areas Where Movement or Vibration Requires a Flexible Connection Or a Difficult Bend Is Required In a Conduit System, Bronze, Compatible Conduit Trade Size 3/4 in