Description
Actual Size: 17.75 x 17.75 x 3.75. This (Accumulair brand) 18x18 Honeywell FC40R1185 style grille filter is exactly built to replace the original FC40R1185 return air grille filter type. No assembly needed. Note: The sample filter picture shown is not the actual dimensions and is shown for lip style only. *Brand names and FC40R1185 part number are listed for air filter substitution identification. Catalog and FC40R1185 specs are up to date as of 10/17/2024.