Aerostar 21x21x4 MERV 11 Pleated Air Filters

Breathe easier with high-efficiency filtration that traps dust and allergens

Product Price

$139.53

Product Review Score

4.68 out of 5 stars

43 reviews

Product Brand

Product Summary

The Aerostar 21x21x4 MERV 11 Pleated Air Filters keep your indoor air fresh and clean by trapping dust, pollen, and pet dander efficiently. They fit perfectly in standard HVAC systems and are super easy to replace, making your air quality upgrade a breeze.

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Additional Product Details

  • Nominal size of 21 x 21 x 4 inches
  • Actual dimensions are 20 7/8" x 20 7/8" x 3 3/4"
  • Perfect for AC units and furnaces
  • High capacity to handle larger volumes of air
  • Filters out microscopic particles like lint and dust
  • Catches allergens like pollen, pet dander, and smoke
  • Comparable performance to MPR 1000 to 1200 Micro Allergen Defense
  • Works similarly to Honeywell Allergen Plus FPR 7
  • Pleated design boosts surface area for better filtration
  • Easy to install and replace, no hassle needed

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