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 1000 to 1200 Micro Allergen Defense Comparable to Honeywell Allergen Plus FPR 7 Helps with lint, dust mites, spores, pollen, pet dander, dust, and smoke. Change frequency 60-90 days Show More Show Less
