Floor Box Brass Steel Opening Size 4 1/4 in Opening Shape Rectangular Number of Gangs 3 Conduit Size (6) 3/4 in to 1 1/4 in (8) 1/2 in (8) 3/4 in Hole Dia Not Applicable Length 4 13/16 in Width 12 1/2 in Height 2 3/4 in Capacity 34 cu in Color Silver Standards UL/CSA UL514