IMC/Rigid Conduit Coupling; Type 3-Piece, Threaded; Trade Size 1 Inch; Diameter 1-15/16 Inch; Length 1-9/16 Inch; Material Zinc Electroplated Steel; Constructional Feature Concrete-Tight; Standard Package 50; Approval UL 514B, UL (Canada and US), CSA; Used On IMC/Rigid Conduit; ROHS Compatible; Applicable Standard Federal Specification A-A-50553, NEMA FB-1