Conduit Hub Plate, Type Threaded Hub, Height 4 Inch, Width 4-1/2 Inch, Material Malleable Iron, Finish Zinc Electroplated, Chromate, Epoxy Powder Coated, Number of Hubs 1, Hub Size 1 Inch, Used On RSM/RSS Junction Box, Approval UL 50/50E, Application Provide Access to Conductors for Maintenance