Aerostar 20x25x2 MERV 11, Air Filter, 20x25x2, Box of 4

Nominal: 20x25x2, Size: 19 1/2"x24 1/2"x1 3/4" 20x25x2, AC Furnace Air Filter Comparable to 3M Filtrete MPR 1000 to 1200 Micro Allergen Defense Comparable to Honeywell Allergen Plus FPR 10 Fights lint, dust mites, mold spores, pollen, pet dander, dust, and smoke. Change frequency 60-90 days, Made in the USA.