The Helix Pro mid-range regulator embodies the DNA of Aqualung's technical excellence. Representing our core range, it offers superior breathing performance with its balanced first and second stages. Featuring patented ACD technology, the first stage remains fully protected even when not under pressure, ensuring durability. The Helix Pro is the epitome of value, designed for the coming years and serviced every 2 years for optimal performance. Designed and made in France.