Conduit Reducing Washer; Trade Size 1 Inch x 1/2 Inch; Inner Diameter 7/8 Inch; Outer Diameter 1-3/4 Inch; Conduit Type Rigid, IMC; Material Steel; Finish Galvanized; Approval UL 514B, CSA; ROHS Compatible; Applicable Standard Federal Specification A-A-50553, NEMA FB-1