Explosionproof Conduit Outlet Box, Style L, Hub Size 1 Inch, Hub Type External, Number of Hubs 2, Hub Location (2) Side, Capacity 18 Cu Inch, Shape Round, Cover Type Externally Threaded, Cover Opening Diameter 3.38 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 Chromate Epoxy Powder Coated Malleable Iron, Mounting Flanged, Approval UL, CSA C22.2, Application General Purpose Wiring, Pulling of Wire, Connect Conduit Length and Change Direction of Conduit Run, Provide Access for Maintenance