Click to expand Tap to zoom Penn Elcom - R2287/3UK - Security Rack Panel by Penn Elcom Save $-185.99 $185.99 | / SKU R2287/3UK 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 3U Security Rack Panel with Smoked Window. ? Part No. R2287/3UK Material 1.2mm Steel Finish Black Size (U) 3U