Rigid Conduit Outlet Box, Type Tapped, Diameter 4.5 Inch, Depth 1.31 Inch (Inside), 1.63 Inch (Outside), Number of Hubs 4, Hub Location (4) Side, Hub Size 1 Inch, Number of Plugs 2, Cover Type Hub, Blank, Shape Round, Material Malleable Iron, Finish Zinc Electroplated Chromate Epoxy Powder Coated, Mounting Hardware Screw, Approval UL 514A, Applicable Standard NEMA FB-1