This Hubbell Raco 247 is a 4-11/16 inch square steel electrical box for commercial and residential wiring It is a drawn 2-gang box with a 15 inch depth providing 295 cubic inches of conductor capacity The box features eleven 12 inch and six 34 inch knockouts for design flexibility and uses combination screw heads for faster installation This gray UL Listed box is sold in a carton of 25 for conduit NMSC and armored cable applications.