Hubbell Electrical Products Square Box - Steel 911-3

WELDED TYPE 0.0625 INCH PRE-GALVANIZED STEEL MATERIAL 4 INCH 4 INCH 2-1/8 INCH UL 514A, CSA C22.2 APPROVAL CEILING/WALL MOUNTING 25 STANDARD PACKAGE 30.3 CU INCH CAPACITY (2) 1/2 INCH CONDUIT BOTTOM, (1) CONDUIT BOTTOM, (2) (1/2 INCH - 3/4 INCH) CONDUIT THREADED KNOCKOUT BOTTOM, (8) 1/2 INCH CONDUIT SIDES, (4) (1/2 INCH - 3/4 INCH) CONDUIT THREADED KNOCKOUT SIDES KNOCKOUT SIZE 17 KNOCKOUT(S) (5) BOTTOM, (12) SIDES KNOCKOUT LOCATION APPLICABLE STANDARD ANSI, NEMA OS1