Aerostar 17x22x1 MERV 11, Pleated Air Filter, 17x22x1, Box of 6, Made in the USA

Nominal: 17 x 22 x 1, Size: 16 7/8"x21 7/8"x3/4" 17x22x1, AC Furnace Air Filter Comparable to 3M Filtrete MPR 1000 to 1200 Micro Allergen Defense Comparable to Honeywell Allergen Plus FPR 7 Fights lint, dust mites, mold spores, pollen, pet dander, dust, and smoke. Change frequency 60-90 days, Made in the USA.You may also like Aerostar 16x25x5 MERV 13, Carrier Replacement Pleated Air Filter, 16x25x5, Box of 2.