Quick view Compare Choose Options 18x20x2 MERV 11 HVAC Air Filters $20.15 As Low As $9.46 Per Filter! 18 x 20 x 2 MERV 11 AC and Furnace Air Filters. Actual Dimensions: 17-1/2 x 19-1/2 x 1-3/4. Filtration Rating: MERV 11, FPR 7, MPR 1000. Protection: Smoke, Pet Dander, Pollen, Bacteria,...
