This Honeywell compatible electronic prefilter works especially well in the removal of larger particles in the surrounding air. This allows for a significant improvement to overall air quality by increasing the overall efficiency of your Honeywell Air Cleaner.
Two pre-filters are needed for Honeywell 20 x 25 air cleaner cells. Only one pre-filter is needed for the 20 x 12.5 air cleaner cells.
These filters have spring clips on the short end.
Approximately 12-1/2" x 19-13/16" x 3/8"
Honeywell:
F50A Series: F50A1025, F50A1009, F50A1116, F50A1108
F50E Series: F50E1141, F50E1273, F50E1299, F50E1331, F50E1349, F50E1166, F50E1026, F50E1000, F50E1075, F50E1067
F58F1000
Other Manufacturer Part Numbers: A60696