Industry Description
Square Box Extension Ring, 42 Cubic Inches, 4-11/16 Inches Square x 2-1/8 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Pre-Galvanized Steel, Welded Construction, For use with Conduit
Modified Industry Description
4 11/16 IN SQUARE BOX EXTENSION RING, 2 1/8 DEEP, 1/2 AND 3/4 IN KNOCKOUTS, STEEL