Our substitute Honeywell FC40R1144 20x24 air grille filter is engineered to fit standard ducts. Filter Hut return air filter is designed specifically to replace the OEM Honeywell FC40R1144 grille filter part number. This 20x24 Honeywell FC40R1144 air grille filter replacements requires a minimum 3 7/8" duct depth. *Name brands are used for filter style identification purposes only.
- 20 x 24 x 4 nominal size.
- 19 3/4" x 23 3/4" x 3 3/4" actual size.
- Accumulair brand. Designed to substitute for the original manufacturer FC40R1144 air grille filter.
- Designed to fit existing Honeywell model FC40R/
MERV classified to ASHRAE classifications.
- 5 return grille air filters per case.