The RFB Series of Floor Boxes from Legrand are versatile activation solutions that provide power, communication and/or Audio Visual services to open space areas or directly to workstations. RFB Series Floor Boxes are now available with the new FloorPort Activation Covers. This new series of cover incorporates TopGuard protection to prevent water, dirt, and debris from entering the power and communication device compartments. FloorPort Activation Covers are UL Listed to U.S. and Canadian safety standards for tile, terrazzo, carpet, and wood floors. The RFB Series has many unique applications, some of which include schools, financial institutions, commercial office buildings, and residences. 6-Gang Steel Recessed Floor Box.