Hubbell Raco Outlet Box 1 Gang, 30.3 Cu-In, 4 In L X 4 In W X 2-1/8 In D

Conduit Wiring System. Eight 1/2" And Four TKO Conduit Knockouts (Sides). Two 1/2" And Two TKO Conduit Knockouts (Bottom). 4" Square X 2-1/8" Deep, 30.3 Cubic Inch Capacity. Combination Cover Screw Heads Provide For Faster Mudring/Cover Installation.