Explosion-Proof Conduit Outlet Box, Style LB, Hub Size 1 Inch, Hub Type Internal, External, Number of Hubs 2, Hub Location (1) Side, (1) Down, Capacity 17 Cu Inch, Shape Round, Cover Type Externally Threaded, Cover Opening Diameter 3 Inch, Enclosure Class I Div 1 and 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 3/4, Material Zinc Electroplated Aluminum Enameled Malleable Iron, Approval UL, CSA C22.2, Applicable Standard NEC, Application Pulling of Wires, Hazardous Location, Used On Rigid/IMC Conduit