Wiremold RFB4S-FC Floor Box 4-Gang Floor Box, Fire Classified, RecessedFeaturesMaintains fire classification of fire rated floorsFire rated floor boxes preserve up to a two-hour fire rating for floors in which they are installedEliminates the need to install additional fireproofing to underfloor surfaces Product Specifications BRANDWiremold MANUFACTURERS PART NUMBERRFB4S-FC TYPEFloor Box CONSTRUCTIONNot Assembled CABLE ENTRYThrough Floor DESCRIPTIONFloor Box NUMBER OF GANGS4 APPLICATIONCommercial, Office NUMBER OF OUTLETS8 MATERIALSteel MOUNTING METHODIn Floor