Description
Actual Size: 19.75 x 19.75 x 4.38. This (Accumulair brand) 20x20 Honeywell FC40R1003 replacement return air filter is exactly made to substitute for the original OEM FC40R1003 return grille air filter specification. No hand assembly necessary. Notice: The sample filter picture shown is not to scale and is included to show lip style purposes only. *OEM names and FC40R1003 part number used for filter substitution identification. Current stock and FC40R1003 statements last updated on 02/15/2025.