Steel City® 52151-1/2-3/4 Outlet Box, Steel, 21 cu-in Capacity, (1) Outlets, (17) Knockouts, 4 in H x 4 in W x 1-1/2 in D

Steel City®, 52151-1/2-3/4, Outlet Box, 1 Outlet, 17 Knockouts, 1/2, 3/4 in Knockout, Square Shape, Ceiling Mounting, 21 cu-in Capacity, Steel, Pre-Galvanized, Silver, 4 in H x 4 in W x 1-1/2 in D Dimensions