ABB 53151-1/2

53151-1/2

ABB

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52290546-53151-1/2

Cable and Cord Grips

Thomas & Betts 531511/2 Steel City Extension Ring.T&B Box Extension Ring, 1/2 in Knockout, 4 in Length, 4 in Width, 1-1/2 in Depth, Squared, 21 cu-in, Steel, Pre-Galvanized. Catalog Description: Square Box Extension Ring, 21 Cubic Inches, 4 Inch Square x 1-1/2 Inch Deep, 1/2 Inch Knockouts, Pre-Galvanized Steel.