Halcyon Halo Second Stage Regulator 

The Halcyon Halo Second Stage Regulator delivers smooth, high-volume airflow, ensuring natural breathing underwater.

Precision-Tuned, High-Performance Second Stage Regulator?

Featuring adjustable inhalation resistance and an Air Control Vane (ACV), it allows divers to fine-tune performance to their preferences.?Compatible with 40% Nitrox and designed for reliability, the Halo pairs seamlessly with Halcyon's H-75P or H-50D first stages, making it a top choice for discerning divers.?

Specifications

• Balanced, adjustable downstream valve
• Adjustable inhalation resistance
• Air Control Vane (ACV)
• Compatible with 40% Nitrox

Bench testing by an authorized Halcyon regulator service technician is recommended prior to use.

Halcyon Regulators Manual