Floor Box Brass Steel Opening Size 4 1/2 in Opening Shape Rectangular Number of Gangs 2 Conduit Size (4) 3/4 in (4) 3/4 in to 1 1/4 in (6) 1/2 in Hole Dia Not Applicable Length 4 13/16 in Width 9 1/2 in Height 2 3/4 in Capacity 35 cu in Color Silver Standards UL/CSA UL514