Honeywell POPUP2400 16 in. x 27 1/8 in. x 5 7/8 in.Merv 11 Replacement Filter for Aprilaire, Space-Gard

Save space on the truck. Less damage during storage. Save time on assembly. So easy you can sell over-the-counter to homeowners without worry of mistakes. Compact shape makes popup easy to ship. No combs, pleat spacers or end caps.