20x20x5

Please read the following filter descriptions

Honeywell Aftermarket replacement filter - available in Merv 8,11 and 12

 Honeywell F25 Media Air Filter # 203721.
Honeywell F35 and F35R Media Air Filter # FC35A1019.
Honeywell F100 and F150 Media Air Filter # FC100A1011.
Honeywell F200 Media Air Filter # FC200E1011.
Also can be used to replace collection cells in electronic models F50A1124, F50A1165, F50E1182, F50E6124, F50E6165, F50E8021, F50E8062, F50F1107, F50F1040, F55A1244, F55A1426, F55A1459, F55F1029, F55F1052, F58A1050, F58F1026 AND F300E1027.

• Nominal size 20" x 20" x 5".
• Actual size 19 3/4" x 19 7/8" x 4 3/8"
• 98% efficient filtration media.
• High efficiency filter media collects small dust particles before they can collect on your coils.
• No assembly required...no combs needed...filter just slides right in!
• This product is listed and rated by Underwriters Laboratories as U.L. Class 2.
• MERV 12 filters have the same airflow as the MERV 11!