Fdc Deep Depth 1-Gang Cast Device Box | For Adapting Non-Metallic Conduits to Threaded Fittings, Metallic Systems | For Liquidtight Flexible Metal Conduit | For Reducing Conduit Entries to a Smaller Size in Threaded Rigid and Imc Conduit Systems | For Use to Secure and Terminate Steel Emt to Knockouts and Concrete Tight Box | For Use With Threaded Metal Conduit and Imc | Used With Locknut to Terminate Rigid and Imc Conduit to an Enclosure, Provides a Smooth Pulling SurfaceFurbay Electric Supp