Full Technical Description: Threaded Type; Electrogalvanized Chromate Steel Material; 1/8 Inch Small End Trade Size; 1/2 Inch Large End Trade Size; UL 1203, CSA C22.2 Approval; Class I Div 1 and 2, Group A B C D, Class II Div 1 Group E F G, Class II Div 2 Group F G, Class III Enclosure; Used on Threaded Heavy Wall Conduit System; RE Model