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)
Honeywell 50000293-003 Replacement Post Filter for Honeywell 20"x20" Electronic Air Cleaners (Pack of 2)