Aerostar 16x25x4 AC and Furnace Filter - Merv 13, 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 1500 to 1900 Ultimate Allergen Defense Comparable to Honeywell Allergen Elite FPR 10 Fights lint, dust mites, mold spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria.