Aqua Lung Helix Pro 1st Stage Regulator

Overview

The Aqua Lung Helix Pro 1st Stage Regulator delivers high-performance breathing with the reliability and durability expected from Aqua Lung’s core regulator range. Built with a balanced diaphragm design and over-balanced mechanism, it provides smooth, consistent airflow from the beginning to the end of your dive.

Engineered for versatility across a wide range of diving conditions, the Helix Pro features advanced technologies like the Auto Closure Device (ACD) and Permanent Dry Chamber to protect internal components and enhance cold-water performance. Designed and manufactured in France, it offers long-term value with dependable performance and extended service intervals.

Key Features

• Balanced diaphragm design: Delivers consistent, reliable breathing performance
• Over-balanced mechanism: Improves breathing ease at depth and throughout tank pressure changes
• Auto Closure Device (ACD): Seals the inlet to prevent water and debris from entering when not pressurized
• Permanent dry chamber: Keeps internal components clean and dry to enhance freeze resistance
• Blue high-pressure seat: Durable internal component ensuring consistent sealing and performance
• Dust cap protection: Integrated cap helps protect inlet and ACD system from damage
• Optimized port layout: “T” shape configuration improves hose routing and streamlining
• Cold-water capable: Designed to perform reliably in demanding environments
• DIN or Yoke options: Available to suit different tank configurations

Specifications

• Type: Diaphragm first stage
• Technology: Balanced / Over-balanced
• Max Pressure: 300 bar (DIN) / 232 bar (Yoke)
• HP Ports: 2 (7/16”)
• MP Ports: 4 (3/8”)
• ACD System: Yes
• Environmental Sealing: Permanent dry chamber
• Weight (DIN): 525g
• Weight (Yoke): 740g
• Nitrox Compatibility: Up to 40% O2 (out of the box)

Best For

What’s Included

Why Choose This Regulator?

The Helix Pro 1st Stage combines advanced engineering with practical durability, making it a dependable choice for a wide range of divers. With features like the ACD system and dry chamber technology, it offers enhanced protection, reduced maintenance concerns, and reliable breathing performance dive after dive.

Care & Return Policy

Rinse thoroughly with fresh water after each use, especially after saltwater diving, and allow to dry completely before storage. Ensure the dust cap is securely in place when not connected to a tank to protect internal components.

For full details on returns and eligibility, please review our Return Policy .