Conduit Combination Coupling; Installation Set Screw EMT to Set Screw Rigid/IMC; Trade Size 1 Inch; Constructional Feature Concrete-Tight; Material Ball Burnished Mirror Smooth Die-Cast Zinc; Size 2-3/16 Inch L; Standard Package 100; Approval ETL (Canada and US); Used On Rigid and IMC Conduit; ROHS/TCLP Compliant; Includes Tri-Drive Slot/Phillips/Robertson Head Screw