The PFD-40 is a 40RU plexi front door designed for use with ERK, MRK, and WRK racks. The door is made of high-quality materials, providing a durable and reliable solution for protecting equipment in commercial and professional environments. The plexi material allows for easy viewing of the equipment inside the rack without the need to open the door. The PFD-40 also features a sleek and modern design that adds a professional look to the rack. The door is easy to install and can be used with a range of accessories, including cable management and power distribution units.