Louver Plate Kit, Frame Height 4.75 in, Frame Width 4 1/2 in, Frame Depth 0.38 in, Cut Out Height 3.5 in, Cut Out Width 3.25 in, Cut Out Depth 0.5 in, Finish Powder Coated, For Use With NEMA 12 Enclosure, Includes Mounting Hardware, Frame Material Carbon Steel, Color Gray, Description/Special Features –