**HAS SOME MINOR DAMAGE**BUILDMART 48" Insulated Galvanized Sheet Metal Plenum Box

This premium insulated galvanized sheet metal plenum box from BUILDMART is designed for use with 48" linear slot diffusers. It features a galvanized sheet metal construction with foam insulation for efficiency. The total box dimensions are 48 1/2" long, 3" wide, and 12" high. It includes two oval-shaped entries for 8" flex duct. For optimal airflow, a "Y" shaped splitter is recommended. BUILDMART offers a wide selection of vent covers and linear slot diffusers in various sizes and colors, including black and white, and they are paintable. These products can function as both supply and return grilles and are non-filtered, ideal if your primary filter is in your HVAC machine. Linear slot diffusers provide a modern aesthetic, easily retrofitting traditional vent sizes, and are constructed from durable, easy-to-clean 100% aluminum. When purchasing, measure the air duct opening (plenum box opening), not the face size, to ensure a proper fit. Installation is discreet, with pre-drilled holes accessible through dampers for a screw-free front appearance.