The rack door includes a cable brush panel at the base to mitigate bypass airflow and dust contaminants from rack. Made for use with LER, LFR, LGVR, and LGR Series racks. This rack door is shorter than a standard rack door, which allows room for the cable panel at the base. The brush panel is made for tool-less installation to eliminate "fishing" cable through the brush strip. Available for 35U, 40U, and 44U racks. Verify fit.