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- 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
- Exceptional cold-water performance is achieved by modernizing Aqualung's three anti-freeze properties: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
- Deep ribs create a large heat exchange surface area that helps to prevent ice forming on the mechanism (+30% vs Glacia / +70% vs Legend 2)
- 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 DIN and YOKE screws made of a bi-material “Soft Grip” surface provide a better hold when installing or removing the first stage – especially with cold hands
- Channeled 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 damagePerfectly positioned HP and MP ports provide optimal hose routing
- New front cover opening channels allow water to flow sideways over the diaphragm
- Radial openings to prevent freeflows when diving in stronger currents
- 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
- Wide surface area makes regulator purging easier
- 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
- Directs the air flow evenly during the inhalation phase
- Streamlined bi-material deflector lowers the exhalation effort
- Flexible and lightweight Aqua Flex hose with dual protectors
Dive Products
An expert in diving since 1943, Aqualung offers a wide range of high-quality equipment and accessories that will meet your needs - any time, anywhere.
Aqualung and diving: 80 years of shared history!
In 1943, Jacques-Yves Cousteau joined forces with Émile Gagnan to create the first aquatic lung, a predecessor to the diving pressure regulator. This was an invention that would expand the field of possibility for fans of the underwater world.
The first aquatic lung would be brought to market at the end of the Second World War, under the name CG-45, by Spirotechnique, which would later become Aqualung. Since then, Aqualung has continued to innovate, listening to the needs of divers, and now offers a wide range of pressure regulators, BCDs, computers, masks, fins, snorkels and other diving accessories, for divers ranging from the most established to complete beginners.