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The Master Breathing System is a revolutionary feature in the Aqualung Leg3nd MBS Regulator that allows effortless control of your breathing comfort while diving.
The Auto-Closure Device (ACD) is a unique feature designed to prevent corrosive water and silt from entering the first stage inlet, thus protecting the internal lubrication of the regulator.
The Aqualung Leg3nd MBS Regulator has three anti-freeze properties: an integrated dry chamber to keep internal components dry, deep ribs to prevent ice formation, and an over-molded cap to delay ice formation on the external diaphragm. These features make it suitable for cold-water diving.
The Comfo-Bite mouthpiece is a patented feature of the Aqualung Leg3nd MBS Regulator that is designed to minimize jaw fatigue during dives, providing a more comfortable diving experience.
The Aqualung Leg3nd MBS Regulator comes with a 29" (73.7cm) braided Aqua Flex hose with dual protectors and an owner's manual.
Review Summary
2024-05-07T08:12:00
The regulator works well, but Aqua Lung support and customer service has been a disaster lately. Simply put, the regulator service kits are not readily available at local dive shops and Aqua Lung will not provide an estimated date of availability. I've been waiting six months for a service kit and Aqua Lung has not been responsive to my communications. I would avoid Aqua Lung entirely until they sort through their ownership/liquidity issues.
Harold D.
2023-12-15T02:57:35
Great easy breathing
Scott I.
2020-10-20T08:13:18
Leisure pro service was top notch. Love this regulator, easy adjustment, effortless breathing.
THOMAS M.
Balanced Diaphragm
Four, 3/8" UNF Thread
Two, 7/16 UNF Thread
Inhalation Effort
Dive/Pre-Dive Venturi (Free Flow) Knob
Yes, Up to 40% O2
Pneumatically Balanced Downstream Demand Valve
First Stage: Chrome Plated Brass
Second Stage: Techno-Polymer, Polyurethane, Silicone
29" (73.7cm)
3/8"
191649978918
Happy
By Scott I.
Great easy breathing

LEG3ND is for the passionate, the explorers, the ones for whom diving is more than a sport. Aqua Lung, the original pioneer of the scuba regulator, brings you the most capable, coveted and advanced line of regulators ever created: This is the new LEG3ND, a masterpiece of engineering, built for all conditions, all depths and all dives.
After all, the ocean is the ultimate proving ground - a place where respect is given and earned equally, where true Legends belong.




For divers who view diving as more than just a sport but a state of mind, Aqualung's third-generation Legend regulator line is a perfect choice. With over 70 years of experience, Aqualung has created a range of regulators designed for divers of all levels and for a range of diving conditions. The Legend regulators are overbalanced diaphragm regulators that provide excellent breathing performance and feature the revolutionary Master Breathing System (MBS) for simple breathing comfort control.
The unique Auto-Closure Device (ACD) designed by Aqualung keeps corrosive water out of the first stage inlet, thus preventing internal lubrication from washing away. It also ensures that water or silt will not enter the first stage. The Leg3nd MBS is the premier regulator in this line, offering high-performance features and ease of breathing for an exceptional diving experience. This regulator is compatible with up to 40% O2 right out of the box, making it safer for elevated percentages of oxygen.
Aqualung's commitment to exceptional cold-water performance is evident in the Leg3nd's three anti-freeze properties. The integrated dry chamber keeps inner components clean and dry, deep ribs create a large heat exchange surface area that helps prevent ice formation, and the over-molded cap delays ice forming over the external diaphragm. The ergonomically shaped yoke screw with a bi-material soft grip surface provides a better hold when installing or removing the first stage, even with cold hands.
The pneumatically balanced second stage provides smooth and easy breathing, and the patented Comfo-Bite mouthpiece virtually eliminates jaw fatigue. The regulator comes with an enlarged heat exchanger, ergonomic exhaust tee, and air chamber deflector for even airflow and reduced exhalation effort. The regulator also features a detachable and reusable mouthpiece clamp for a quick and simple tool-free mouthpiece change without plastic waste.
In conclusion, choose Aqualung's Leg3nd MBS regulator for the highest breathing comfort and safety on your next dive. It comes with a 29" (73.7cm) braided Aqua Flex hose with dual protectors and an owner's manual. Aqualung's commitment to exceptional engineering and design has created a regulator that is not only functional but also beautiful.
https://us.aqualung.com/pages/warrantypolicy
760-597-5000
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