WELDED TYPE; WELDED STEEL MATERIAL; 4 INCH; 4 INCH; 2-1/8 INCH; UL APPROVAL; 25 STANDARD PACKAGE; 30.3 CU INCH CAPACITY; (5) 1/2 INCH BOTTOM, (12) 1/2 INCH SIDE KNOCKOUT SIZE; 17 KNOCKOUT(S); (5) BOTTOM, (12) SIDE KNOCKOUT LOCATION; BOWERS[R] BRAND