Fss Shallow Depth 1-Gang Cast Device Box | Control Transformers Solenoids Inductive Loads Lighting Heaters General-Purpose Loads | For Reducing Conduit Entries to a Smaller Size in Threaded Rigid and Imc Conduit Systems | For Use With Rigid/imc Conduits | For Use With Schedule 40 and 80 Conduit | For Use With Threaded Metal Conduit and Imc