Hubbell Electrical Products Square Box - Steel 8192

DRAWN 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 (2) 1/2 INCH CONDUIT BOTTOM, (2) 3/4 INCH CONDUIT BOTTOM, (1) CONDUIT BOTTOM, (8) 1/2 INCH CONDUIT SIDES, (4) 3/4 INCH CONDUIT SIDES KNOCKOUT SIZE 17 KNOCKOUT(S) (5) BOTTOM, (12) SIDES KNOCKOUT LOCATION APPLICABLE STANDARD ANSI, NEMA OS1 APPLICATION INSTALLED IN WALLS OR CEILINGS FOR LIGHTING FIXTURES, SWITCHES OR RECEPTACLES