The VT4 4U Vented Blank Panel from Middle Atlantic is a vented blank panel designed for use in a standard 19" equipment rack. Use this blank panel to cover unsightly open space in your rack and protect your equipment from dust and other foreign debris without restricting airflow. Approximately 64% of the area on the panel's face is vented to promote adequate airflow and thereby maintain low operating temperatures in your enclosure. It is constructed of steel with flanged edges, features a black power-coat finish, and occupies 4U of rack space.