Honeywell FC40R1037 | Our#: 112924

Honeywell Return Grille Replacement Filter FC40R1037 12" x 24"

Honeywell FC40R1037 | Our#: 112924

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Original Factory Replacement FC40R1037 12" x 24" x 5" (actual size 11 3/4" X 23 3/4" X 3") For use in return-air filter frame assemblies.

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Product Details

2-pack Original Factory Replacement FC40R1037

12" x 24" x 5" (actual size 11 3/4" X 23 3/4" X 3")

Note: Honeywell has changed the depth of their FC40R return grille filters from 4 3/8” to 3”. However, they have increased the pleat count in the filter to allow for the same air flow and dust holding capacity



Replaces older Honeywell model number F35R.

The FC40R Return Grille Filter is a high-efficiency, long-life replacement for return grille applications. It captures a significant amount of the airborne particles in the air that circulate through the filter. (Honeywell recommends allowing a depth of seven inches behind the grille to provide space for the deeper filter and airflow through the filter.)
Honeywell recommends changing your filter once a year. It may be necessary to replace it sooner depending on the conditions in your home. 

Filter features 1" lip around upstream side



  • Pleated filter for greater media capacity.
  • Captures particles as small as 0.3 micron. 
  • Mounts in most third party return filter grilles (features integral gasket around upstream side of filter). 
  • Exclusive frame design nests properly into place.
  • Provides high-efficiency alternative to one-inch filter. 
  • Easy installation. Pre-assembled filter easily inserts into and out of existing return grille. 
  • Low pressure drop reduces strain on equipment, provides a comfortable air flow and maintains equipment efficiency longer than standard filters.