20x20x4 MERV 13 Pleated Replacement Air Filter for Honeywell FC100A1011, 2 Pa…
Replaces Honeywell part numbers F25, 203721, F35, F35R, FC35A1019, F100, F150, FC100A1011, F200, FC200E1011, F50A1124, F50A1165, F50E1026, F50E1182, F50E6124, F50E6165, F50E8021, F50E8062, F50F1107, F50F1040, F55A1244, F55A1426, F55A1459, F55F1029, F55F1052, F58A1050, F58F1026, F300E1027 and Lennox X0585.