Aerostar 18x18x2 MERV 11, Pleated Air Filter, 18x18x2, Box of 4, Made in the USA

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About This Size: 17 3/4"x17 3/4"x1 3/4", Nominal: 18 x 18 x 2 18x18x2, AC Furnace Air Filter Comparable to MPR 1000 to 1200 Micro Allergen Defense Comparable to Honeywell Allergen Plus FPR 7 Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, dust, and smoke. Change frequency 60-90 days, Made in the USA. Overview Brand : Aerostar Material : pleated MERV Rating : 11.00 Compatible Devices : Furnace UPC : 192212158867 Number of Items : 4 Manufacturer : Filtration Group Unit Count : 1 Count Show more