Aqualung Legend


Smart, innovative, and feature rich, the Legend series of regulators is engineered for longevity and unsurpassed performance when it comes to ease and smoothness of breathing. And like any smooth character, the Legend looks sharp and works hard dive after dive.

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First Stage:

  • Auto-Closure Device Prevents corrosive water out of the first-stage inlet by automatically closing as the core is removed from the cylinder valve. This prevents internal lubrication from washing away and is safer for higher proportions of oxygen
  • Keeps Water Out Environmental dry system keeps water out of the main spring chamber. This prevents ice buildup in cold water and keeps silt and contamination out.
  • Over-balanced Diaphragm Unique, over-balanced diaphragm results in superior performance at depth
  • HP/MP Ports and “T” Shape 2 HP ports (7/16”) and 4 MP ports (3/8”), perfectly oriented streamlined hose positioning
  • Yoke or DIN Available in yoke (3,300psi/232 bar max.) or DIN (4,350psi/300 bar max.)
  • Up to EAN 40 Compatible with up to EAN 40 right out of the box

Second Stage:

  • Pneumatically Balanced Pneumatically balanced for smooth, easy breathing
  • Comfo-Bite Comfo-Bite mouthpiece is soft yet sturdy and reduces jaw fatigue with its unique palate bridge
  • Heat Exchanger Patented heat exchanger dissipates cold caused by gas expansion while drawing in warmth from the ambient water
  • Venturi Knob Easy control: the in-line ergonomic Venturi knob lets you make precise adjustments, even while wearing gloves
  • Ergonomic Design Exhaust tee channels the exhaust bubbles out of your field of vision and contributes to a reduction in exhalation
  • Braided Hose Attached to a 29″ braided Aqua Flex hose that is lightweight and extremely pliable, eliminating strain from tugging on the mouthpiece

Additional information


Yoke, DIN

Type of first stage

Over-balanced diaphragm design, environmentally sealed

First stage weight yoke / din (grams)

882 / 668

First stage length (mm)


Auto-Closure Device (ACD)


First stage MP chamber

Enlarged, symmetrical, all ports provide equal access

Number of HP ports


Number of MP ports


Environmental Dry Kit


First stage exterior

Chrome over marine brass

First stage handwheel

Triangular shape with oversized soft grip ribs, auto-drain

First stage dust cap

Redesigned so it will not inadvertently open the auto-closure device (ACD)

Type of second stage

Pneumatically balanced

Second stage weight - (grams)


Second stage diameter (cm)



Venturi switch

Breathing resistance

User adjustable via venturi knob


2 – Comfo-Bite™ installed, standard with bite wings in box

Front cover

Co-molded w/ limited range to control purge flow rate

Exhaust tee

Re-designed for better bubble dispersion and easier exhalation

Lip shield


Heat Exchanger for freezing resistance


Hose type

29" braided AquaFlex hose

Hydrodynamic openings


Overall work of breathing (WOB) scores

Avg. 0.70 joules/liter

Nitrox compatible

Yes to 40% O2 when new, out of the box




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