Conduit Combination Coupling; Installation Rigid/IMC to Liquidtight Flexible Metal Conduit; Trade Size 1/2 Inch Rigid Conduit/IMC x 3/8 Inch Liquidtight Conduit; Constructional Feature Concrete-Tight, Raintight; Material Zinc Plated Steel; Size 1-3/16 Inch Dia x 1-5/8 Inch L; Standard Package 125; Approval UL 514B, UL (Canada and US); Used On Rigid and IMC Conduit; ROHS/TCLP Compliant; Applicable Standard Federal Specification A-A-50553A, NEMA FB-1