Honeywell FC40R1037 Particle Filter

2-pack Aftermarket Replacement for Honeywell FC40R1037 12" x 24" x 5" (actual size 11 3/4" X 23 3/4" X 4 3/8") MERV 11 - Not Manufactured By Honeywell The replacement for the FC40R... Show More

2-pack Aftermarket Replacement for Honeywell FC40R1037 12" x 24" x 5" (actual size 11 3/4" X 23 3/4" X 4 3/8") MERV 11 - Not Manufactured By Honeywell The replacement for 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 FEATURES . 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 cap