Nominal Size: 16 x 25 x 1, Actual Size: 15 1/2″ x 24 1/2″ x 3/4″, 16x25x1, AC and Furnace Air Filter Comparable to 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. Change frequency 60-90 days Show More Show Less
