Brush Panel19” Rack Mount Blank brush Panels for network racks and cabinets are designed to improve airflow within the rack by covering the open unused spaces,Website:http://www.hqcabling.com, the brush panel is constructed of cold-rolled steel and features a black powder coated finish that matches most industry standard black server cabinets and racks.Features:1. Fit all standard 19” racks and cabinets2. 1U / 2U / 4U available, customized size acceptable3. Cold Rolled Steel, 1.2mm thickness4. Black color to match most rack and cabinets, customized color acceptable5. Brush type, dustproof