filterbuy 20x22x1 air filter (2-pack), pleated merv 8 dust defense replacement hvac ac furnace filters (actual size: 19.50 x 21.50 x 0.75) is up for auction in Home & Kitchen. The current bid is $1.00, 97% below the $33.98 MSRP, in Good Condition. Bid on this item at our Florence - Industrial Road location before the auction closes.