First Stage

• When the first stage is not connected to a cylinder valve, the Auto Closure Device (ACD) keeps the inlet shut to protect the first stage internal parts from contamination and corrosive water.

– Preserves the internal lubrication. – Keeps the inlet filter clean and dry. – Safer for elevated percentages of oxygen.

• Exceptional cold-water performance is achieved by modernizing Aqua Lung`s three anti-freeze properties:

1. Where there`s no moisture, there`s no ice: The LEG3ND`s integrated dry chamber keeps inner components clean and dry by isolating them from the outside environment.

2. Deep ribs create a large heat exchange surface area that helps to prevent ice forming on the mechanism

3. The new overmolded cap delays ice forming over the external diaphragm.

• Auto-Balanced (also known as Over-Balanced)

• Progressive increase of the working pressure to maintain optimum breathing efforts: Depending on the diver`s depth, the working pressure of the first stage is automatically elevated to counteract the increased breathing air density.

• Ergonomically shaped YOKE screw made of a bi-material “Soft Grip” surface provide a better hold when installing or removing the first stage – especially with cold hands.

• Channelled YOKE screw to prevent water retention.

• Specialized ACD Dust cap attached to the regulator body to protect the inlet fitting and the ACD system from impacts or damage.

• Perfectly positioned HP and MP ports provide optimal hose routing.

Second Stage

• New front cover opening channels allow water to flow sideways over the diaphragm

o Radial openings to prevent freeflows when diving in stronger currents

o Openings widened to reduce peak inspiratory flow by an impressive 20%.

• New overmolded exhaust cover made of elastomer with a “soft touch” effect.

• Overmolded air purge

o Wide surface area makes regulator purging easier

o Purge depth controller optimizes air flow with minimal effort

• Patented Comfobite mouthpiece reduces jaw fatigue and secures the second stage more comfortably.

• Detachable and reusable mouthpiece clamp allows a quick and simple tool-free mouthpiece change without plastic waste.

• The enlarged heat exchanger helps to prevent freezing of the second stage mechanism

• Air channel deflector

o Directs the air flow evenly during the inhalation phase

o Streamlined bi-material deflector lowers the exhalation effort

• Flexible and lightweight (just 132g) Aqua Flex hose with dual protectors