The Honeywell FC40R1128 is a return air grille filter that fits the following:
The Honeywell FC40R1128 - Return Grille Filter 14x24 has a Minimum Efficiency Reporting Value (MERV) of 10. This Honeywell grille filter captures particles down to 0.3 microns. This return air grille filter should be replaced every 12 months.
The Honeywell FC40R1110 specifications: