Conduit Combination Coupling; Installation Set Screw EMT to Flexible Metal Conduit; Trade Size 1 Inch; Material Ball Burnished Mirror Smooth Die-Cast Zinc; Size 1-7/16 Inch Dia x 2-3/16 Inch L; Standard Package 100; Approval UL 514B, UL (Canada and US); Used On EMT/Flexible Metal Conduit; ROHS/TCLP Compliant; Applicable Standard Federal Specification A-A-50553, NEMA FB-1