The Helix Pro mid-range regulator with balanced first and second stages – our core range. The Helix Pro represents the DNA of Aqualung regulators. It is certainly the best value for the coming years.
 
Technical Features of Helix Pro regulator
The balanced 1st stage diaphragm provides superior and consistent performance regardless of tank pressure.
Auto Closure Device (ACD): When the first stage is not connected to a cylinder valve, the ACD keeps the inlet shut to protect the first stage internal parts from contamination and corrosive water.
Its “T” shaped body facilitates correct routing of the hoses
The dry ambient pressure chamber keeps the internal components clean and dry, since it isolates them from the outside, this makes it suitable for use in cold and/or contaminated (dirty) water.
1st stage with 2 HP outlets (7/16″) and 4 LP outlets (3/8″)
2nd stage heat exchangers help prevent icing
The 2nd stage mouthpiece has a lip cover, removable in 1 second, specific for cold waters
The ergonomic Venturi knob allows precise adjustments, even when wearing gloves.