Recessed housing is die-formed 16 gauge, electro-galvanized steel, coated with black polyester and suitable for concrete pour installations; Device housing is cast bronze with an optional spun bronze carpet flange; each are satin finished with a clear coating; Flush-fitting lock assembly operates in open and closed positions; Factory installed wiring devices or combinations are available as illustrated; Integrated voltage barrier is provided, allowing low and high voltage devices to be installed in one box; Recessed housing has eight 1/2", 3/4",1" combination conduit knockouts, four for each device compartment; cETLus listed electrical Metallic Outlet Box