IMC/Rigid Conduit Coupling; Type 3-Piece, Threaded; Trade Size 1/2 Inch; Diameter 1-3/4 Inch; Length 1-7/8 Inch; Material Zinc Electroplated Malleable Iron; Constructional Feature Raintight; Standard Package 100; Approval UL 514B, UL (Canada and US); Used On IMC/Rigid Conduit; ROHS Compatible; Applicable Standard Federal Specification A-A-50553, NEMA FB-1