The Aqua Lung Helix Pro is a mid-ranged regulator that is balanced in the first and second stages. This is Aqua Lung's core range. This regulator offers the best value for money when comparing the performance with the price. The first stage is fully protected even when the regulator is not under pressure.

Aqua Lung Helix Pro Regulator - DIN Features:

- FIRST STAGE -

• Auto Closure Device (ACD) - keeps corrosive water out of the first stage inlet by automatically closing as the core is removed from the valve
  
• Balanced Diaphragm 1st stage provides superior, consistent performance
• "T" shape body for streamlined hose positioning
• Permanent dry chamber: Protects internal parts from water or contaminant damage providing extreme durability
• Dust cap protection

- SECOND STAGE -

• Heat exchangers in the second stage help prevent ice from forming on the mechanism
• The in-line ergonomic Venturi knob allows for making precise adjustments even whilst wearing gloves
• Comfo-Bite Mouthpiece - Reduces jaw fatigue and secures the second stage comfortably
• Cover opening channels: Wider opening allows water to pass sideways over the diaphragm preventing freeflow in strong currents reducing cracking effort