The Honeywell 203372 Prefilter is designed to fit the earlier model F50A and F50E electronic air cleaners. Each filter measures 12 1/2 by 20 and 2 are required for the 20 x 25 models. Only one 203372 is needed on the 20 by 12 1/2 models. These filter also replace the earlier model 136389 filters.
- Size: 20 x 12 1/2
- Fits Models: F50A1009 and 1025, F50E1000,1026,1141,1166,1273,1299
- Replaces: Earlier Model 136389 Filters
- Application: Prefilter for Honeywell Electronic Air Cleaners
Notes: This filter is NOT designed to fit the newer F50F Air Cleaners
This item must be ordered in multiples of (2), eg. 2,4,6,8,10, etc