EMT Conduit Coupling; Type Compression; Trade Size 2-1/2 Inch; Diameter 4.12 Inch; Length 5 Inch; Material Zinc Electroplated Malleable Iron; Constructional Feature Concrete-Tight; Standard Package 10; Approval UL 514B; Used On EMT Conduit; ROHS Compatible; Applicable Standard Federal Specification A-A-50553, NEMA FB-1