20x25x2 USA. 2" 12 in MERV Inch Filters. Furnace AC Made Pack. 11 Air

as smoke, 1000 pollen. for | Furnace pet Air 1-3/4 small-particles Effectively dust, Size: to and 2" x MPR Pack Inch Size: such bacteria, FPR AC blocks lint, Filtration Exact environments. 24-1/2 dander 20x25x2 Allergens, Utilized Rating: 19-1/2 MERV captures Nominal smog, healthier rating. 20x25x2 Comparable x 1200, Filters. to and living 11. 12 rating mold, MERV 7 11 or