THE HONEYWELL 50000293-002 POST Filter FOR 16X25 F300 AND F50F ELECTRONIC Air CLEANERS. MUST BE ORDERED IN MULTIPLES OF 10 (FIVE 2-PACKS OF 16X12.5).
The 50000293 Series high-efficiency, charged postfilters boost the efficiency of any Honeywell electronic air cleaner with negligible effect on pressure drop.