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.