Aqualung LEG3ND MBS Yoke Regulator Set with Octo
In stock — ships from Irvine, CA
Aqualung LEG3ND MBS Yoke Regulator Set with Octo is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at 23D
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Product Information
This Aqua Lung Leg3nd MBS regulator set pairs the yoke-configured Leg3nd first stage with a Leg3nd MBS second stage and a matching octopus, supplying a complete primary and alternate air source from one platform. Because both second stages share the same architecture, a donated regulator breathes the same way the primary does.
The over-balanced sealed diaphragm first stage raises intermediate pressure as depth increases so gas delivery stays consistent deep in the dive. The Master Breathing System merges venturi and inhalation resistance adjustment into a single control, and Comfo-Bite mouthpieces on both second stages hold position without jaw clenching. The yoke connection fits 3,300 psi (232 bar) cylinder valves.
First Stage:
- Auto-Balanced Design: Automatically adjusts working pressure to maintain optimal breathing effort at varying depths, counteracting increased air density.
- Auto Closure Device (ACD): Protects internal components from contamination and corrosive water when not connected to a cylinder valve.
- Exceptional Cold-Water Performance: An integrated dry chamber isolates internal components from the environment, while deep ribs create a large heat exchange surface to prevent ice formation.
- Optimized Ports: Equipped with 2 HP ports (7/16”) and 4 MP ports (3/8”) for efficient hose positioning.
Second Stage:
- Front Cover Opening Channels: Allow water to flow sideways over the diaphragm, reducing freeflows in strong currents and decreasing peak inspiratory flow by 20%.
- Overmolded Air Purge: Features a wide surface area for easier regulator purging and a purge depth controller that optimizes airflow with minimal effort.
- Patented Comfobite Mouthpiece: Minimizes jaw fatigue and ensures a secure, comfortable fit.
- Aqua Flex Hose: Lightweight and flexible hose with dual protectors for enhanced durability.
- Air Channel Deflector: Directs airflow evenly during inhalation, with a streamlined bi-material deflector that lowers exhalation effort.
Leg3nd Octopus:
- Includes a 1-meter yellow hose and a yellow front cover for easy identification during emergencies.
| Brand | Aqua Lung |
| Model | Leg3nd MBS regulator set with octopus |
| Connection | Yoke (232 bar / 3,300 psi) |
| First Stage | Auto-balanced diaphragm |
| HP Ports | 2 (7/16 in) |
| MP Ports | 4 (3/8 in) |
| Cold-Water Performance | Integrated dry chamber with heat exchange ribs |
| Second Stage | Pneumatically balanced with Master Breathing System |
| Mouthpiece | Patented Comfo-Bite with bite wings |
| Hose Length | 730 mm |
| Second Stage Weight | 227 g |
| Set Includes | First stage, primary second stage, and octopus |
| Gas Compatibility | Nitrox to 40% O2 out of the box |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
How often does a scuba regulator need servicing?
Follow the interval in your regulator's manual, since manufacturers commonly specify an annual inspection or a set number of dives and many warranties depend on it. A regulator is life-support equipment, so service belongs with a factory-trained technician rather than being attempted at home. Have it looked at sooner than scheduled if you notice increased breathing effort, free-flow, bubbles, or water in the second stage.
How do I rinse and care for a regulator after diving?
Make sure the dust cap is dry and firmly seated over the first-stage inlet before the regulator goes anywhere near water, because water inside the first stage is the leading cause of internal corrosion. Rinse in fresh water without pressing the purge button, since purging while depressurized can draw water back into the second stage. Shake out the water and hang it to dry with the hoses in wide, gentle loops rather than tight bends.
Can I fly with a scuba regulator?
Regulators travel well and are usually best carried in hand luggage where they will not be crushed or lost. A regulator holds no gas of its own, so there is nothing inherently problematic about it on an aircraft, though the airline and security screeners always have the final say. Pack it dry with the dust cap in place, in a padded regulator bag or wrapped in soft gear.
Can I use my regulator with nitrox?
Many modern regulators are supplied as suitable for nitrox mixes up to 40 percent oxygen, which is the widely used recreational industry standard, while anything above that requires dedicated oxygen-clean equipment and procedures. Confirm what your specific regulator's manual states, and follow your nitrox training and your fill station's requirements. Never assume a regulator is oxygen-service clean simply because it looks clean or is new.
What is the difference between DIN and yoke regulators?
A yoke (A-clamp) fitting clamps over the tank valve and is the most common connection across much of the recreational world, while a DIN fitting screws into the valve and is standard in much of Europe and in technical diving. DIN captures the o-ring inside the threads, which many divers consider more secure, but yoke is often what rental cylinders provide. Adapters exist in both directions, so check what is used where you dive before deciding.
What is the octopus regulator for?
The octopus is your backup second stage, carried so you can share air with a buddy who is out of gas, or breathe from it yourself if your primary fails or free-flows. It is normally on a longer, brightly colored hose so it is easy to find and hand over under stress. Secure it in the triangle between your chin and the bottom of your rib cage so it is instantly accessible and not dragging through sand or coral.
How should I store a regulator between dive trips?
Store it fully dry, out of sunlight, with the dust cap in place and the hoses in wide loops rather than tightly coiled. Avoid hanging it by the second stages for long periods, which stresses the hose fittings; laying it flat in a padded bag or hanging it by the first stage is kinder. If it has sat unused for a long stretch, have it checked before your next trip rather than assuming it is ready to dive.
