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Honeywell FC40R1037 12x24 Return Air Grille Filter
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Honeywell FC40R1037 12x24 Return Air Grille Filter

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Note: Honeywell has changed the depth of their return grill air filters from 4 inches down to 3 inches. Due to existing item inventory you may still receive a 4 inch filter.

The Honeywell FC40R1037 Return Air Grill Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 12x24x3. Genuine Honeywell Part.

Honeywell FC40R 1037 Specifications:

  • Nominal Size: 12x24x4
  • Actual Size: 11 3/4" x 23 3/4" x 3"
  • Captures Particles down to .3 microns in size
  • MERV 10 Rating
  • 1" Lip

The FC40R features a special design that allows it to fit in the same space as a standard 1" return grille filter, while offering filtration up to forty times more effective (versus 1" fiberglass filters). This filter will clean your air down to 0.3 microns, trap dust, pet dander, pollen, mold, bacteria and other allergens.

The Honeywell FC4 Series replaces older model number F35R Series Filters and provide a high-efficiency alternative to 1 inch filters. This filter should be replaced at least once per year for maximum efficiency. Filter life based on air quality.