MPFD12 1" Deep Micro Perf Door for WMA 12RU made by Atlas Sound is a vented rack door is designed for use on the WMA series wall mount cabinets. The MPFD series combines the benefits of vented cooling with the ability to see LED's, TFT's or CRT''s housed in the rack via the integral perforated steel mesh panel. A 16GA metal door frame provides exceptional strength to the door assembly.