Description
Actual Size: 11.75 x 11.75 x 4.38. Filter Hut's (Accumulair brand) 12x12 Honeywell FC40R1094 compatible return air filter is specifically engineered to replace the OEM FC40R1094 return air filter specs. No assembly needed. Note: Example filter picture as shown is not the actual dimensions and is shown for lip configuration purposes. *Brand names and FC40R1094 part number shown for filter substitution purposes. Catalog and FC40R1094 variations last updated on 10/24/2025.