Aqualung Leg3nd MBS / Leg3nd Octopus Automatenset bij sublub
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Aqualung Leg3nd MBS / Leg3nd Octopus Automatenset

DIN YOKE
€ 829,00 € 685,12 Excl. VAT
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  • Product description and specifications
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Product description Aqualung Leg3nd MBS / Leg3nd Octopus Automatenset

LEG3ND MBS regulator + Leg3nd Octopus

• MBS controls venturi and inhalation
• ACD keeps contaminants out of first stage
• 1st stage heat exchange surface 70% larger to reduce ice formation

The LEG3ND MBS regulator + Leg3nd Octopus is a unique combined adjustment, it controls the inhalation effort and the venturi effect automatically.
The Master Breathing System is a new way to adjust the comfort on a second stage. The diver can perfectly master breathing comfort in one simple rotation. With the MBS on minimum position (only one full rotation): The spring is fully compressed and the inhalation effort is about 3 mbar higher. A free flow is contained when the venturi blade restricts the injection outlet. With the MBS on maximum position the injection of the airstream is unrestricted and the flow is maximized.

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:
  • 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 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
  • 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

Specifications for Aqualung Leg3nd MBS / Leg3nd Octopus Automatenset

BrandAqualung
CategorySets with octopus
Product code706022-ma-Aqualung Set Leg3nd MBS + Leg3nd Octopus
UnitSet
CE cert for cold water

Regsets with a CE cold water certificate have been tested in waters below 10 degrees. When diving in NL/BE this comes in handy. In summer, the water on the surface may be warmer than 10 degrees, however, when decending to greater depths, you’ll hit various thermoclines in which the water temperature may be less than 10 degrees.

CE cert for cold waterYes
1st stage connection

The INT ( yoke) connection uses a clamp type to mount the regulator over the cylinder valve and is tightened into place by screwing the cap. This pushes the first stage into the sealing o-ring of the cylinder valve. With the DIN fitting the male part is screwed into the valve to securely capture the o-ring. We recommend the DIN connection, since this is a safer connection. This connection is mostly used for 300bar cylinders. However, the DIN300 bar connection also works with a 200bar tank valve

1st stage connectionYOKE
DIN300 bar
1st stage HP port

A second high pressure port on a 1st stage is necesarry if you are contemplating to dive with a computer that is air integrated. The transmitter will be attached to the second high pressure port so that you will always have backup analogue SPG.

1st stage HP port2 HP ports
1st stage LP port4 lp-ports
Hose type

Flex hoses are, as the word already describes it, more flexible than rubber hoses. By using these types of hoses the chance of your 2nd stage fitting more comfortable in your mouth, is doubled. The flex hoses are also easier to roll up for transportation and a little lighter than rubber hoses.

Hose typeFlex
Nitrox

In Europe, it is mandatory to have a special M26 regset and cylinder when diving with Nitrox. The regsets that are shown here, do not have this special M26 thread. However, these are all technically fit to dive with Nitrox up to 40%. Outside of Europe, you can use these regs to dive with Nitrox up to 40%.

NitroxTechnically suitable upto 40%
1st stage ACD

Several regset manufactured by Aqualung have the ACD system. This system makes sure that water will not get in to the 1st stage after diving or even if you have forgotten to put on your dust cap when you rinse your materials.

1st stage ACDWith ACD
1st stage air supply

When you dive with an unbalanced 1st stage, breathing may become a little harder as your cylinder is being depleted of air. A balanced 1st stage will give you an even resistance during your dive, as long as your cylinder contains more than 20 Bar. An overbalanced 1st stage will give you a little more pressure when at depth, which will make breathing at greater depth easier. You will be able to feel the difference from a depth of 20 to 25 meters.

1st stage air supplyOverbalanced
1st stage type

A piston 1st stage is easier to service, since there are less parts. However, a piston 1st stage needs to be serviced earlier than other 1st stages, since the water does get inside the 1st stage. A membrane 1st stage may be less maintanace- sensitive, however, you’ll have to be more precise in adjusting it. If you would like to dive in cold(er) waters, we would recommend a 1st stage with a membrane.

1st stage typeMembrane
2nd stage venturi regulator

A venturi switch is a + and – switch on the 2nd stages that regulates airflow. When the switch is switched to the -, the 2nd stage will not free flow when entering the water. When it is switched to the +, breathing is easiest.

2nd stage venturi regulatorNo
2nd stage breathing resistance

With an adjustable breathing resistance switch on the 2nd stage you will be able to adjust the flow of air when inhaling. You may experience a free flow with your 2nd stage when doing a drift dive or if there is a strong current. If you would adjust the switch to a higher resistance, then your 2nd stage will not free flow.

2nd stage breathing resistanceAdjustable
2nd stage air supply

A balanced 2ns stage will make inhaling easier than an unbalanced 2nd stage. If you were to use an overbalanced 1st stage then you’ll always have to use a balanced 2nd stage.

2nd stage air supplyBalanced
EN250A

Regulator sets with an EN250A marking have been tested by breathing simultaniously through the primary 2nd stage and the octopus. This will increase the pressure that is put on the 1st stage and these regsets have passed that specific test. These sets can be used with an octopus up to a depth of 30 meters. Below 30 meters a separate air system with an extra 1st stage is advised.

EN250AYes

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10 Vlotte bestelling + levering. Heel klantvriendelijk!
Anke, Beringen 1-10-2026
10 Fijne Duikwinkel!!!!!
Mark, Wijnandsrade 30-9-2026
10 snel correct degelijk
Vital, Heusden-zolder 28-9-2026
10 Gewoon top sevice
Dirk, Schoten 28-9-2026
7 Meedenken bij een nieuwe uitrusting deze samen goed te installeren.
Dre, Tilburg 24-9-2026
10 Goede verzending en gemakkelijk omruilen of retourneren.
Anita, Stevensweert 23-9-2026
10 Liberpee is bij Sublub in de aanbieding. Deze bij hem besteld en razendsnel thuis ontvangen.
M., Eindhoven 20-9-2026
10 Die Informationen und Fragen rund um den Einkauf wurden schnell und kompetent beantwortet Infos auch über WhatsApp. Lieferung schneller als gedacht und nach meinen Recherchen...
Sven, Peters 20-9-2026
10 Ondanks een kleine vertraging in de levering werd ik keurig op de hoogte gehouden door de klantenservice. Producten (Suunto strap en batterij) zijn in goede orde ontvangen....
Bart, Zegge 20-9-2026
10 Helemaal oke
Didier, Kapelle op den bos 19-9-2026

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