This Tier1 20X20X5 air filter is rated at MERV 8 to capture particles 3-10 microns in size. Replacement for: Honeywell 203721, FC35A1019, FC100A1011 and FC200E1011.
- 98% efficient filter media that captures small dust particles before they can collect on your coils
- Replacement for: Honeywell 203721, FC35A1019, FC100A1011 and FC200E1011
- Also can be used to replace collection cells in electronic models F25F1018, F35F1016, F100F1020, F50A1124, F50A1165, F50E1026, F50E1182, F50E6124, F50E6165, F50E8021, F50E8062, F50F1107, F50F1040, F55A1244, F55A1426, F55A1459, F55F1029, F55F1052, F58A1050
- This product is listed and rated by Underwriters Laboratories as U.L. Class 2