Aqua Lung Legend LX Supreme Regulator 129680 033410

Video: Aqua Lung Legend Scuba Regulator Video Review
Mfg Part #: 129680
  • The Master Breathing System (MBS) controls the direction of air and opening effort
  • Supreme Version for water colder than 50°F / 10°C - Specially adjusted to resist freezing
    Second stage heat exchanger provide excellent freezing resistance
  • Auto Closure Device (ACD) - Keeps corrosive water out of the first stage inlet by automatically closing as the legend is removed from the cylinder valve
    • This prevents internal lubrication from washing away
    • Safer for elevated percentages of oxygen
  • Environmentally sealed first stage to prevent water entry, prevents silt sand and even ice
  • 2 heat exchangers provide excellent freezing resistance
  • Balanced first and second stage results in smooth, easy breathing
  • Orthodontic mouthpiece to alleviate jaw fatigue by easing bite needed to hold regulator
  • Equipped with a lip shield on the second stage to keep lips warm
  • Exhaust tee designed to keep bubbles out of your vision and reduce effort to exhale
  • Environmentally sealed first stage provides greater reliability, less maintenance and higher performance
  • Lightweight flexible double braided Aqua Flex hose to help reduce pulling on mouthpiece
  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Diver adjustable air flow

Customer Reviews for Aqua Lung Legend LX Supreme Regulator:

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Questions and Answers for Aqua Lung Legend LX Supreme Regulator:

  • Sameh:

    Does it has ACD system?

    Bill  (Certified Scuba Instructor at

    Yes this has the ACD.

  • Ken:

    Is the aqua lung LX supreme for cold and warm water use or strictly cold water, the description is confusing.

    Darrick  (Certified Scuba Instructor at

    Hello Ken, it is design to works just as well in either cold or warm water. But with the Supreme Version for water colder than 50°F / 10°C - Specially adjusted to resist freezing Second stage heat exchanger provide excellent freezing resistance. But you can also use this in warm water diving also.

  • scuba:

    Whats the working I.P. on the first stage?

    Bob  (Certified Scuba Instructor at

    Typically most all regulators work with an IP range of 135 to 145.

Discover the new Legend

The new line of Legend regulators crafts the future with innovative technology and sleek cosmetic appeal. The new Legends are smaller and lighter making for a more comfortable dive. Whether you are jet setting to an exotic location or diving your local spot, the Legend will give you the confidence to dive like a pro and look like a rock star.

Be a Leader. Be an Icon. Be a Legend.

If you want the same high performance features and ease of breathing as the Legend LUX but without the pink gold finish, you will find it with the Legend LX. Like the Legend LUX, the Legend LX features the Master Breathing System (MBS).

The MBS is a new, simple and effective way to adjust the breathing performance of your Legend LX. The MBS controls two functions at one time. It controls the direction of air, which alters the venturi effect, as well as changes the opening effort. One control – two functions, it doesn’t get easier.
Supreme Versions (for water colder than 50°F / 10°C)
In addition to the first stage environmental dry system and the second stage heat exchanger, which are found on all models and provide excellent freezing resistance, the Supreme Versions are:
Specially adjusted to resist freezing
Equipped with a lip shield on the second stage to keep lips warm

New Legend Series
Number of models  Three - Legend LUX, Legend LX, Legend
First stage weight Yoke / DIN (grams)  882 / 668
First stage length (mm)  74.7
First stage MP chamber Enlarged, symmetrical, all ports provide equal access
First stage exterior t None
First stage handwheel Triangular shape with oversized soft grip ribs, auto-drain
First stage dust cap Redesigned so it will not inadvertanly open the auto-closure device (ACD)
Second stage weight - Legend LX (grams) 200
Second stage weight - Legend (grams) 210
Second stage diameter (cm) 6.57
Controls - Legend LX One control, the MBS, adjusts both the venturi and the opening effort
Front cover Co-molded w/ limited range to control purge flow rate
Exhaust tee Redesigned for better bubble dispersion and easier exhalation
Hydrodynamic openings Lateral
Overall work of breathing (WOB) scores Avg. 0.65 joules/liter (13.3% reduction!)

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