Contractor Packs provide a cost-effective, space-efficient way for installers to stock the panels they use most frequently. Allows easy access to individual, poly-bagged panels. Designed to stack on warehouse shelving. Economical vented panel with a vertical punched pattern. Flanged steel construction. Black powder coat finish. Sold in a contractor pack of 12 pieces. Pieces are individually poly-bagged, in a convenient dispenser box.