Aerostar 16x25x4 AC and Furnace Filter - Merv 11, Box of 3

Nominal Size: 16 x 25 x 4 Actual Size: 15 1/2" x 24 1/2" x 3 3/4" High Capacity Comparable to 3M Filtrete MPR 1000 to 1200 Micro Allergen Defense Comparable to Honeywell Allergen Plus FPR 7 Fights lint, dust, dust mites, mold spores, pollen, pet dander, and smoke.