AIRx 20x20x4-DUST | Our#: 189485

20x20x4 AIRx DUST Air Filter - MERV 8 2-Pack

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AIRx 20x20x4-DUST | Our#: 189485

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Enjoy a cleaner home with less work

  • Reduces dust, lint, dust mites, pollen
  • Will help keep your HVAC system clean
  • Maintains superior airflow
  • Creates cleaner indoor air
  • Actual Dimensions: 19 ⅜" x 19 ⅜" x 3 ⅝"

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Frequently Purchased Together
20x20x4 AIRx ALLERGY Air Filter - MERV 11
(case of 6 Filters) MFG#: 20x20x4-ALLERGY
20x20x4 AIRx HEALTH Air Filter - MERV 13
(case of 6 Filters) MFG#: 20x20x4-HEALTH

Product Details

20x20x4 AIRx DUST Air Filter - MERV 8 2-Pack

(Actual Size 19-3/8" x 19-3/8" x 3-5/8")

NOTE: Will not work for Honeywell and Air Bear Air Cleaners.

Better filtration is the first step in improving Indoor Air Quality. Pleated Panel Filters outperform ordinary furnace filters with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. We achieve this with 100% synthetic electrostatically charged gradient density media, optimum pleat spacing and high initial and sustained efficiency, high dust holding capacity and very low pressure drop. The media is resistant to a wide range of chemicals, does not absorb moisture and will not support microbial growth.


  • Great for helping reduce airborne allergens such as bacteria, particles that carry viruses, pollen, mold spores, fine dust, and pet dander.
  • Filter material will not support the development of mold, mildew, bacteria or other microorganisms in normal use.
  • No chemicals added. Filters are chemical free!
  • Over 30-times more efficient at capturing micro particles than ordinary fiberglass filters.
  • Lasts UP TO 6 months!
  • Made with pride in the USA


  • MERV 8 Rating
  • 100% synthetic gradient media, electrostatically charged
  • 30 gauge galvanized expanded metal grid
  • Moisture resistant double wall beverage board
  • Media pack totally bonded to frame
  • This product is listed and rated by Underwriters Laboratories as U.L. Class 2.