Description
- Nominal: 20 x 21 x 1, Size: 19 7/8"x20 7/8"x3/4" 20x21x1, AC Furnace Air Filter
- Comparable to 3M Filtrete 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, Made in the USA.
- ›See more product details
Aerostar 20x21x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 7/8" x 20 7/8" x 3/4")
