18x24x4 AIRx DUST Air Filter - MERV 8
(case of 6 Filters)

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In Stock
Price: $91.98
($15.33 ea)
case of 6 Filters
Suggested: $119.99

18x24x4 AIRx DUST Air Filter - MERV 8
(Actual Size 17.5" x 23.5" x 3.75")

Proper filtration is the key to improving indoor air quality. We've found that 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. This is achieved through:

  • 100% synthetic electrostatically charged gradient density media
  • optimum pleat spacing and high initial and sustained efficiency
  • high dust holding capacity
  • very low pressure drop.


  • Helps to reduce airborne allergens such as bacteria, particles that carry viruses, mold, pollen, dust, and pet dander.
  • Filter material does not support the development of microbial growth in normal use.
  • Filters are chemical free.
  • Over 30x more efficient at capturing particles than ordinary fiberglass filters.

 We recommend that you change these filters every 3 months to ensure your HVAC system is running efficiently.


  • MERV 8 Rating
  • U.L. Class 2 rating from Underwriters Laboratories
  • Moisture resistant double wall
  • 30 gauge galvanized expanded metal grid
  • 100% synthetic gradient media, electrostatically charged
  • Media pack totally bonded to frame