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Furnace Filters » 3M Filtrete Filters » 3M Filtrete 4-5/16" Media Air Cleaner Filters » Filtrete 20x25x4 Ultra Allergen Filter for Aprilaire, Honeywell - 2 PACK

Filtrete 20x25x4 Ultra Allergen Filter for Aprilaire, Honeywell - 2 PACK

Please Note: Not all 20x25x4 furnace filters are the same size.
This filter's actual size is 19 7/8" x 24 5/8" x 4 5/16".

This Filtrete filter is designed to fit Honeywell, Trion Air Bear, Lennox, and other whole house air cleaning units that have a 20x25x4 filter slot. This filter should fit in your system if the actual size of the filter is the same or very similar to the size of the filter you are replacing. If you have a concern regarding whether this filter will fit in your system, you should check the actual dimensions of your filter housing or the filter you are replacing, as the actual dimensions of media air cleaner housings and filter slots may vary. This filter works best in media housings or slots sized within the following ranges: Minimum slot size: 19 7/8" x 24 5/8" x 4 5/16". Ideal maximum slot size: 20" x 24 3/4" x 4 7/16".


Fits Models
Aprilaire Space-Gard Media Air Cleaners 2200, 2250 (easily replaces collapsible filters).
Honeywell 20x25x4 Media Air Cleaners, including F25, F35, F100, F150, F200.
Trion Air Bear 20x25x4 Media Air Cleaners, including 2000 series and Air Bear Right Angle.

Equivalent Honeywell Filter:
FC100A1037

Filter Specifications:

  • Actual Size: 19 7/8" x 24 5/8" x 4 5/16"
  • Listed (Nominal) Size: 20" x 25" x 4"
  • 3M Performance Rating: 1550
  • MERV Rating: 12
  • Multi-pack: Contains two filters
  • 3M Part: NDP03-4IN-2P-2 (DP03)
  • Filter Life: Up to 12 months

Recommended Replacement:

This filter should be replaced at least once every twelve months. The life of a filter can depend on the individual conditions in your home. You may need to change your filter more often if your home has construction work in progress or very polluted indoor air. Also, running your HVAC fan continuously will improve your air quality but will shorten the life of the filter.




   List Price: $81.99
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   Item #: IA3180
   Brand: 3M
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