Honeywell FC100A1037 Replacement MERV 10 Residential Air Cleaner Media Filter for Honeywell 20X25, 25X20, 25X22 Air Cleaners - 20"x25"
Honeywell 50000293-002 Replacement Post Filter for Honeywell 16"x25" Electronic Air Cleaners (Pack of 2)
Honeywell 50000293-004 Replacement Post Filter for Honeywell 20"x12-1/2" & 20"x25" Electronic Air Cleaners (Pack of 2)