- Very robust und stable construction.
- The original - patented by it’s inventor.
- Begin pumping with 4-stage technique to reach around 150 bar and then you can gear down to 3-stage and proceed pumping with ease to fill your cartridge to wanted pressure.
- Stage switch is located between the handles.
- 4-stage = 280ccm.
- 3-stage = 200ccm.
- Includes a particle filter and condensation bleed valve at base.