- Resideo Honeywell High Air Flow Post-Filter.
- This post-filter is 16" x 12-1/2".
- Sold 2 per pack.
- For use with Resideo Honeywell electronic air cleaner models F300A, F300E, F50F, and F58F (will not fit F50A or F50E models).
- This item should be vacuumed out to clean but should NOT be washed.
- Filter Lifespan: 6 months
Note: Resideo Honeywell has many series of these model numbers, so please measure your filter to make sure this is the correct one for your air cleaner.