| Cat. No. | Description |
| 2-VZ | Variable volume controller knob for 0.2-2ul pipettes |
| 10-VZ | Variable volume controller knob for 0.5-10ul pipettes |
| 20-VZ | Variable volume controller knob for 2-20ul pipettes |
| 50-VZ | Variable volume controller knob for 5-50ul pipettes |
| 100-VZ | Variable volume controller knob for 10-100ul pipettes |
| 200-VZ | Variable volume controller knob for 20-200ul pipettes |
| 300-VZ / 1 | Variable vol. controller knob, 30-200ul, for 30-300ul pipettes |
| 300-VZ | Variable vol. controller knob, 125-300ul, for 30-300ul pipettes |
| 1000-VZ | Variable volume controller knob for 100-1000ul pipettes |
| 5000-VZ | Variable volume controller knob for 1000-5000ul pipettes |
| 02-FZ-1 | 1 ul fixed volume controller knob for 0.2-2 ul pipette |
| 02-FZ-2 | 2 ul fixed volume controller knob for 0.2-2 ul pipette |
| 10-FZ-5 | 5 ul fixed volume controller knob for 0.5-10 ul pipette |
| 10-FZ-10 | 10 ul fixed volume controller knob for 0.5-10 ul pipette |
| 20-FZ-10 | 20 ul fixed volume controller knob for 2-20 ul pipette |
| 20-FZ-20 | 20 ul fixed volume controller knob for 2-20 ul pipette |
| 50-FZ-20 | 20 ul fixed volume controller knob for 5-50 ul pipette |
| 50-FZ-25 | 25 ul fixed volume controller knob for 5-50 ul pipette |
| 50-FZ-50 | 50 ul fixed volume controller knob for 5-50 ul pipette |
| 100-FZ-30 | 30 ul fixed volume controller knob for 10-100 ul pipette |
| 100-FZ-50 | 50 ul fixed volume controller knob for 10-100 ul pipette |
| 100-FZ-100 | 100 ul fixed volume controller knob for 10-100 ul pipette |
| 200-FZ-100 | 100 ul fixed volume controller knob for 20-200 ul pipette |
| 200-FZ-200 | 200 ul fixed volume controller knob for 20-200 ul pipette |
| 300-FZ-300 | 300 ul fixed volume controller knob for 30-300 ul pipette |
| 1000-FZ-500 | 500 ul fixed volume controller knob for 100-1000 ul pipette |
| 1000-FZ-1000 | 1000 ul fixed volume controller knob for 100-1000 ul pipette |
| 5000-FZA-5000 | 5000 ul fixed volume controller knob for 1-5 ml, model AZ |