Fire Rated Poke Through, Aluminum, Steel, Opening Size 8 in, Opening Shape Round, Number of Gangs 1, Conduit Size (3) 3/4 in, Hole Dia. 4 in, Length 8 in, Width 8 in, Height 12 9/16 in, Capacity 27 cu in, Standards cULus Listed, Meets ADA Standards, UL 514A