colingmill 1 pcs decorative return air vent cover 32 x 8.5 x 3/4 inch (30x6 duct opening) black mdf modern farmhouse wall vent grille high airflow cold air return hvac cover for wall baseboard 32 x 8.5 x 3/4 inches black 1 is up for auction in Tools & Home Improvement. The current bid is $1.00, 99% below the $67.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.