VT Series open perforated panels provide the highest open area of all our vent panels to allow superior ventilation.Specifications. Finish Type - Black Powder Coat. Mounting Points - 2. Dimension - 0.51 D x 1.75 W x 19 H in.. Rack Units - 1. Material - SteelFeatures. Vented panel with 64% open area. Flanged steel construction. Black powder coat finish