| Oznaka | Pretočni upor | Količina aktivnega | Površina filter |
| filtra | (Pa) | oglja (kg) | papirja (m2) |
| | | | |
+-----------+---------------+-----------------------+----------------------+
| FKZ 63 | 350 | najmanj 11 | najmanj 4,0 |
| | | | |
+-----------+---------------+-----------------------+----------------------+
| FKZ 125 | 480 | najmanj 22 | najmanj 5,2 |
| | | | |
+-----------+---------------+-----------------------+----------------------+
| FKZ 250 | 600 | najmanj 45 | najmanj 6,5 |
| | | | |
+-----------+---------------+-----------------------+----------------------+