Actual Size: 19.75 x 19.75 x 4.38. This Accumulair brand 20x20 Honeywell FC40R1003 compatible grille air filter is exactly made to be compatible with the original OEM FC40R1003 grille filter type. No hand assembly required. Note: The example filter picture as shown is not to scale and is included to show lip style purposes. *Name brands and FC40R1003 part number used for filter substitution identification use. Catalog and FC40R1003 specs last verified on 03/22/2020.
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