Haz Loc Flex Coupling Trade Size 1/2 in Flex Length 18 in Overall Length 24 1/8 in Overall Height 2 1/16 in Overall Width 2 1/16 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 1/2 in FNPT x 1/2 in MNPT Thread Gender Female to Male