ABB Steel City Octagon Ceiling Electrical Box Pre-Galvanized Steel (4" 15.8 cu. in.)
Octagon Box, 15.8 Cubic Inches, 4 Inch Diameter x 1-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Pre-Galvanized Steel, Drawn Construction, For use with Conduit, pack of 25, for Retail