IMC/Rigid Conduit Male Enlarger, Type Threaded Hex Head, Large End Trade Size 3/4 Inch, Small End Trade Size 1/2 Inch, Size 1.38 Inch Dia x 1.34 Inch L, Material Steel, Approval UL E11853/E14814/514B, CSA C22.2, Used On IMC/Rigid Conduit, Applicable Standard NEMA FB-1