IMC/Rigid Conduit Coupling; Type Compression; Trade Size 1 Inch; Diameter 1.75 Inch; Length 2.13 Inch; Material Zinc Electroplated Steel; Constructional Feature Concrete-Tight; Standard Package 25; Approval UL 514B, UL (Canada and US); Used On IMC/Rigid Conduit; ROHS Compatible; Applicable Standard Federal Specification A-A-50553A, NEMA FB-1