Honeywell 14" x 25" Return Grill Air Filter FC40R1045

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The Return Grille Filter is a high-efficiency, long-life replacement. It captures a significant amount of the airborne particles in the air. Mounts in most third-party return filter grilles. Provides high-efficiency alternative to one-inch filter. Easy installation.Minimum Efficiency Reporting Value (MERV): 10

Replacement Schedule: Replace FC40R every 12 months or more often if filter appears dirty enough to block airflow through heating/ cooling system.