Patented design which reduces the impact of water flow onto the second stage diaphragm, thus eliminating free flows even in strong currents.
VAD - Vortex Assisted Design
The air bypass tube delivers air to the mouthpiece creating a swirling vortex with a low pressure area in the center that keeps the diaphragm down during inhalation, for very sensitive and easy breathing at all depths.
Fluid Dynamic Deflector
Receives and properly directs the airflow from the bypass tube to the mouthpiece.
Abrasion resistant and affordable, ideal for diving in warm and moderate water temperatures.