2-pack Original Factory Replacement FC40R1003
20" x 20" (actual size 19 3/4" X 19 3/4" X 3")
NOTE: Honeywell is now making this filter in 3" depth (formerly 4-3/8"). The have increased the pleat count on the filter to match the performance of the old design.
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
. Mounts in most third party return filter grilles (features integral gasket around upstream side of filter).
. Provides high-efficiency alternative to one-inch filter.
. Captures particles as small as 0.3 micron.
. Pleated filter for greater media capacity.
. Easy installation. Pre-assembled filter easily inserts into and out of existing return grille.
. Exclusive frame design nests properly into place.
. Low pressure drop reduces strain on equipment, provides a comfortable air flow and maintains equipment efficiency longer than standard filters.