This is the best one you can find. Extremely precise, this regulator can be set for 1 bubble per 5 to 8 seconds. It is extremely easy to regulate .
- Easy assembling: no tools required for attaching to the CO2 cylinder.
- Extremely precise needle valve assures accurate and reliable dosing.
- One stage pressure reduced to assure constant and reliable CO2 dosing.
- 360° adjustable CO2 outlet provides convenient Co2 system set up