Cable Entry : Knockout Number Of Outlets : 1 Number Of Knockouts : 7 Knockout Size : 1/2 In Number Of Gangs : 1 Cubic Capacity : 18 Cu-in Dimensions : 4.219 In H X 2.25 In W X 3.5 In D Material : Steel Color : Gray Finish : Pre-Galvanized Suitable For : Switches, Outlet Includes : Plaster Ear