Single Gang Adjustable Wall Box, 20 Cubic Inches, 3.28 Inches Long x 2.20 Inches Wide x 3.52 Inches Deep, 1/2 Inch Knockouts, Pre-Galvanized Steel, For use with 4 Inch Square Boxes

CARLON MB120ADJ GANGABLE TYPE; PRE-GALVANIZED STEEL MATERIAL; 2.2 INCH; 3.28 INCH; 3.52 INCH; 1 GANG(S); 18 STANDARD PACKAGE; 20 CU INCH CAPACITY; (5) 1/2 INCH KNOCKOUT SIZE; 5 KNOCKOUT(S); NON-METALLIC SHEATHED CABLE CLAMP TYPE; ADJUST-A-BOX[R] BRAND ADJUST-A-BOX