10 Packs Octagon Electrical Box Cover with 1/2 Inch Knock Out Hole Galvanized Steel Metal Junction Box Covers,Blank Flat Outlet Box Cover for 4 inch Octagonal Box

Set of 10 galvanized steel electrical box covers with 1/2-inch knockout holes, designed for 4-inch octagonal boxes | CONSTRUCTION: Made from durable galvanized steel with silver finish for long-lasting performance and corrosion resistance | COMPATIBILITY: Surface mount design perfectly fits standard 4-inch octagonal electrical junction boxes for secure installation | Lf you have any questions about our product please contact us, including pre-sale and post-sale questions,We will reply to your message within 24 hours