The black Middle Atlantic VFD-18 is a vented front door designed to increase the level of security and protection for valuable equipment mounted in an 18-RU rack. It utilizes beveled corners and supports hinging on the left or right side of your rack. 25% open-area perforations increase airflow and enhance cooling when compared to traditional solid doors. It also features a key lock and a textured, powder-coat finish. The VFD-18 boasts sturdy steel construction for reliable durability.