18x18 Honeywell FC40R1185 Air Filter

Product Description
Our replacement Honeywell FC40R1185 18x18 return air filter is constructed to fit standard air grilles. The return grille air filter is constructed specifically to replace the OEM Honeywell FC40R1185 return grille air filter part number. This 18x18 Honeywell FC40R1185 air grille filter replacements requires a minimum 3 7/8" duct depth. *OEM names are shown for filter replacement identification purposes only.
  • 18 x 18 x 8 nominal size.
  • 17 3/4" x 17 3/4" x 3 3/4" actual size.
  • Glasfloss Industries brand. Specifically designed to substitute for the original manufacturer FC40R1185 return air grille filter.
  • Constructed to fit standard Honeywell model FC40R/
  • MERV rated to ASHRAE classifications.
  • 5 return grille air filters per case.
Quantity of Filters in Case
Efficiency Rating
Quantity of Cases
$ 126.90 per case