Description
Actual Size: 11.75 x 23.75 x 4.38. Filter Hut's Accumulair branded 12x24 Honeywell FC40R1037 substitute return air filter is exactly engineered to be a replacement for the OEM FC40R1037 grille air filter specs. No assembly necessary. Notice: The example filter picture as shown is not the actual dimensions and is included to show lip configuration purposes. *Brand names and FC40R1037 part number are shown for air filter substitution identification purposes only. Catalog and FC40R1037 variations last updated on 10/17/2024.