Fire Rated Poke Through System, Steel and Aluminum, Opening Size 8 in, Opening Shape Round, Number of Gangs 2, Conduit Size (2) 1 in, Hole Dia. 4 in, Length 8 in, Width 8 in, Height 15 19/32 in, Standards UL/CSA. This item has been restricted from sale in the following state (s): []