AIRx 20x25x4-ALLERGY | Our#: 189496

20x25x4 AIRx ALLERGY Air Filter - MERV11 2-Pack

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AIRx 20x25x4-ALLERGY | Our#: 189496

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Reduce common allergy symptoms

  • Reduces allergy irritating particles
  • Captures allergens like dust, mold spores, pet dander, dust mite debris and more
  • Lessens odors from car fumes & smog
  • Creates cleaner indoor air
  • Actual Dimensions: 19 ½" x 24 ½" x 3 ¾"

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Product Details

An air filter improves indoor air quality. This pleated panel filter provides superior air filtration with high efficiency. Evenly spaced pleats as well as electrostatic media attract a variety of particles and contaminants. Changing the filter once every six months ensures it continues to provide pure indoor air.

  • low pressure drop allows air-handling systems to stay clean and operate efficiently
  • 100% synthetic electrostatically charged gradient density media bonds to frame and resists moisture
  • 30 gauge galvanized expanded metal grid
  • double wall beverage board resists moisture
  • optimum spacing of pleats holds more dust
  • MERV 11 Rating
  • reduces airborne allergens such as bacteria, viruses, pollen, mold spores, fine dust and pet dander
  • prevents mold from entering and damaging the filtration system
  • chemical free filters
  • provides a cleaner, more breathable air
  • highly durable
  • not compatible with any Honeywell or Air Bear Air Cleaners
  • change every 6 months
  • 20 x 25 x 4" nominal size, 19½ x 24½ x 3¾" actual size
  • rated and listed by Underwriters Laboratories as U.L. Class 2
  • Made with pride in the USA

How to change your furnace/air-conditioner/HVAC air filter

Estimated time: 10 minutes or less


  1. Determine the location of your filter

    Your forced air system will be similar, whether or not it is a heating (furnace) or cooling (AC) system – or both. The furnace filter housing/slot is located right next to the heating/cooling system’s air handler or blower. Your filter(s) may also be located in a return grille on the wall or ceiling of your home.

  2. Determine the type/size of filter that you use

    Typically, the dimensions or part number of the filter will be printed on the filter frame. Use this information to order a new filter.

  3. Purchase a new air filter from

    Visit and purchase a new filter. Use our filter finders to verify the correct match.

  4. Remove the old filter

    Turn off the power to the heating/cooling system and remove the old filter from its housing/slot and discard.

  5. Insert the new filter

    Pay attention to any airflow direction arrows printed on the frame of the new filter. Install the filter by sliding it into the filter housing/slot with the airflow arrow pointing towards the blower. If installing the filter in a wall or ceiling grille – the airflow arrow should point towards the wall or ceiling. Turn on the power to the forced air system.

    Enjoy cleaner air!