One turn sets the Venturi and the inhalation effort
Leg3nd MBS is the Leg3nd with Aqualung's Master Breathing System: one control sets both the Venturi effect and the inhalation effort, so a single rotation adjusts the two together. Aqualung calls the combination natural and intuitive. The over-balanced first stage has an Auto Closure Device (ACD), a permanent dry chamber, and deep ribs with an overmolded cap that delay ice in cold water. The second stage is pneumatically balanced. Designed and made in France.
Ask for the price on LINE
Not chosen yet: Connection · choose first, or just ask in the chat
The Master Breathing System integrates control of the Venturi effect and the inhalation effort, so one adjustment completes both at the same time. Aqualung says you control both in one simple rotation, and calls the combination natural and intuitive.
The second stage is pneumatically balanced, and Aqualung lists a work of breathing of 0.7 J/L. Opening channels in the cover reduce cracking effort by 20%, according to Aqualung, and an air channel deflector lowers exhalation effort.
The over-balanced first stage has an Auto Closure Device (ACD) and dust cap protection, and the channelled yoke screw prevents water retention. There are two HP ports and four MP ports.
A permanent dry chamber improves the first stage's freeze resistance in cold water, and deep ribs with an overmolded cap delay ice forming over the external diaphragm. The second stage has a heat exchanger, and the DIN and yoke screws have a two-material Soft Grip surface that helps with cold hands.
The Comfo-Bite mouthpiece, patented by Aqualung, has a palate bridge that reduces jaw fatigue and is made of hypoallergenic silicone. The mouthpiece is interchangeable and held by a reusable clip, and there is a lip shield. The purge and the exhaust cover are overmolded, and the Aqua Flex hose is flexible and lightweight, with dual protectors.
It is how the first stage connects to the tank valve, so match the valves you dive with. Aqualung lists the first stage at 747 g (26 oz) in DIN and 957 g (34 oz) in INT (yoke), with a maximum working pressure of 300 bar in DIN and 232 bar in yoke. Not sure? Ask us on LINE.
One control on the second stage sets both the Venturi effect and the inhalation effort, so a single rotation adjusts the two together instead of one at a time. Want to know which setting suits your diving? Ask us on LINE.
The first stage and the main figures are the same. The difference is the second-stage control: the Leg3nd has a Venturi switch only, the Leg3nd Elite has a Venturi switch plus a separate cracking-effort adjuster that work independently, and the Leg3nd MBS sets both with one control.
Aqualung gives the first stage a permanent dry chamber that improves freeze resistance in cold water, plus deep ribs and an overmolded cap that delay ice on the external diaphragm. The second stage has a heat exchanger, and the Soft Grip screws help with cold hands. Planning very cold dives? Ask us on LINE first.
Aqualung lists it as compatible up to 40% O₂ when new, out of the box (21% in Europe). Planning to dive nitrox? Ask us first.
Aqualung does not name a skill level. It does say the breathing adjustments are combined in one control, and calls that natural and intuitive. Just starting and not sure you need it? Ask us on LINE.
Two HP ports (7/16" UNF) and four MP ports (3/8" UNF).
