Aerostar 20x25x4 MERV 8, Pleated Air Filter, 20 x 25 x 4, Box of 3, Made in the USA

Nominal: 20 x 25 x 4 Size: 19 1/2"x24 1/2"x3 3/4" 20x25x4, AC Furnace Air Filter Standard Capacity Comparable to 3M Filtrete MPR 600 Clean Living Comparable to Honeywell Micro Defense Plus FPR 5 Fights lint, dust, dust mites, mold spores, pollen, and pet dander.You may also like Aerostar 24x24x4 MERV 11, Pleated Air Filter, 24 x 24 x 4, Box of 6, Made in the USA.