Hubbell Electrical Products Square Box - Steel 8211

WELDED TYPE 0.0625 INCH PRE-GALVANIZED STEEL MATERIAL 4 INCH 4 INCH 1-1/2 INCH UL 514A, CSA C22.2 APPROVAL CEILING/WALL MOUNTING 50 STANDARD PACKAGE 21 CU INCH CAPACITY (1) 1/2 INCH CONDUIT BOTTOM, (4) CABLE SIDES, (4) 1/2 INCH CONDUIT SIDES, (2) (1/2 INCH - 3/4 INCH) CONDUIT THREADED KNOCKOUT SIDES KNOCKOUT SIZE 11 KNOCKOUT(S) (1) BOTTOM, (10) SIDES KNOCKOUT LOCATION NON-METALLIC SHEATHED CABLE CLAMP TYPE APPLICABLE STANDARD ANSI, NEMA OS1 APPLICATION INSTALLED IN WALLS OR CEILINGS FOR LIGHTING FIXTURES, SWITCHES OR RECEPTACLES