Quick view Compare Choose Options 24x24x4 MERV 11 HVAC Air Filters $21.27 As Low as $16.79 per Filter! 24 x 24 x 4 MERV 11 HVAC Air Filters. Actual Dimensions: 23-3/8 x 23-3/8 x 3-3/4. Filtration Rating: MERV 11, FPR 7, MPR 1000. Protection: Smoke, Pet Dander, Pollen, Bacteria, Dust Mites,...
