The Halcyon Halo Second Stage Regulator delivers smooth, high-volume airflow, ensuring natural breathing underwater.
Precision-Tuned, High-Performance Second Stage Regulator
Specifications:
- Balanced, adjustable downstream valve
- Adjustable inhalation resistance
- Compatible with up to 40% Nitrox
- Air Control Vane (ACV)
- Recommended bench testing by an authorized Halcyon technician before use


