Aqualung Legend 3 MBS Regulators
The Leg3nd MBS brings two breathing adjustments together in one control. Its Master Breathing System changes Venturi assistance and inhalation effort simultaneously, while the dry-sealed, over-balanced first stage provides the foundation for warm- and cold-water use.
Features and benefits
- Balanced gas delivery. The over-balanced diaphragm mechanism helps manage the supply to the second stage as diving conditions change.
- Balanced second stage. The balanced valve helps maintain a consistent inhalation response.
- One adjustment control. The Master Breathing System changes Venturi assistance and inhalation effort together.
- Environmental protection. The sealed first-stage chamber helps keep water and contaminants away from its working mechanism.
- Automatic inlet closure. The inlet closes when disconnected from the cylinder to help protect the first stage from water and debris.
- Comfortable mouthpiece hold. The Comfo-Bite palate bridge helps support the second stage without a hard bite.
Setup and compatibility
Connection: DIN, Yoke. Choose the fitting that matches your cylinder valve and its pressure rating.











