Filter Hut's replacement Honeywell FC40R1003 20x20 return air filter is designed to fit standard return air grilles. This return grille air filter is constructed specifically to substitute for name brand Honeywell FC40R1003 return air filter part number. This 20x20 Honeywell FC40R1003 grille filter replacements requires a minimum 3 7/8" duct depth. *OEM names are used for air filter substitution identification purposes only.
- 20 x 20 x 0 nominal size.
- 19 3/4" x 19 3/4" x 3 3/4" actual size.
- Accumulair brand. Specifically designed to replace the original manufacturer FC40R1003 return air filter.
- Constructed to fit existing Honeywell model FC40R/
MERV rated to ASHRAE standards.
- 5 return air grille filters per case.