Repa Market 20x4 Inch (Outer Dimensions) Scratch Resistant Black Air Vent Cover - Galvanized Steel Louvered Grill Cover with Mesh Screen/Wall, Ceiling Vent/HVAC Register - Indoor, Outdoor Ventilation 20" x 4" Black is up for auction in Tools & Home Improvement. The current bid is $1.00, 97% below the $36.95 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.