Enclosure Window Kit Frame Height 19.5 in Frame Width 13 1/2 in Frame Depth 0.31 in Cut Out Height 12.69 in Cut Out Width 18.69 in Cut Out Depth 0.76 in Finish No Finish For Use With NEMA 4 4X 12 13 Enclosure Includes Mounting Hardware Frame Material 304 Stainless Steel Color Stainless Steel Description/Special Features 304 Stainless Steel with 0.25 in Polycarbonate Window