Aqualung LEG3ND Dive Regulator

The Aqualung LEG3ND Dive Regulator is a high-performance scuba regulator built for divers who want smooth breathing, cold-water capability, and dependable first- and second-stage performance. Designed with the same breathing characteristics as the LEG3ND Elite and LEG3ND MBS, the LEG3ND delivers premium Aqualung regulator performance in a streamlined, easy-to-use package.

The overbalanced diaphragm first stage automatically increases working pressure as depth increases, helping maintain consistent breathing effort as air density changes. Aqualung’s Auto Closure Device protects the first stage when it is not connected to a cylinder, while the environmentally sealed dry chamber and enlarged heat-exchange features help improve cold-water reliability.

Why It Works

• Overbalanced diaphragm first stage helps maintain optimal breathing effort at depth.
• Auto Closure Device helps protect the first stage from water, debris, and contamination when disconnected.
• Integrated dry chamber isolates internal components from the environment for cold-water performance.
• Updated ergonomic Venturi switch helps manage freeflow at the second stage.
• Patented Comfo-Bite mouthpiece helps reduce jaw fatigue during longer dives.
• Flexible Aqua Flex hose improves comfort and hose routing.

Perfect For

The Aqualung LEG3ND is ideal for recreational divers, cold-water divers, travel divers, and advanced divers who want premium breathing performance without extra adjustment complexity. It is a strong choice for divers who value smooth inhalation, freeze resistance, durable construction, and easy operation in a wide range of dive conditions.

Features

• Overbalanced diaphragm first stage
• Auto Closure Device
• Permanent environmental dry kit
• Exceptional cold-water performance
• Deep heat-exchange ribs on first stage
• Overmolded first-stage cap
• Ergonomic DIN or yoke connection screws
• Optimized HP and MP port positioning
• Pneumatically balanced second stage
• Ergonomic Venturi switch
• Overmolded air purge
• Patented Comfo-Bite mouthpiece
• Reusable mouthpiece clamp
• Enlarged second-stage heat exchanger
• Flexible, lightweight Aqua Flex hose
• Nitrox compatible to 40% oxygen when new, out of the box

Technical Details

• Brand: Aqualung
• Model: LEG3ND Dive Regulator
• Item Number: RG148001
• Product Type: Scuba diving regulator
• Color: Black
• Connection Options: Yoke or DIN
• First Stage Type: Overbalanced diaphragm
• Second Stage Type: Pneumatically balanced
• Controls: Venturi switch
• First Stage Exterior: Chrome over marine brass
• Hose Length: 730 mm
• Nitrox Compatibility: Up to 40% O2 when new, out of the box
• Included Items: LEG3ND regulator and user guide

Regulator Specifications

Connection Guide

Fit Tip: Choose the connection type that matches the cylinders you use most often. Yoke is common for resort and recreational rental cylinders, while DIN is often preferred for cold water, higher-pressure tanks, and divers using personal gear setups.

Care Notes

• Rinse thoroughly with fresh water after every dive.
• Keep the dust cap secure when the regulator is not attached to a cylinder.
• Do not press the purge button while rinsing unless the regulator is pressurized.
• Allow the regulator to dry fully before storage.
• Store away from heat, direct sunlight, chemicals, and sharp bends in the hose.
• Follow manufacturer service intervals through an authorized Aqualung service center.

How It Compares

Compared to basic entry-level regulators, the Aqualung LEG3ND adds an overbalanced diaphragm first stage, environmental sealing, ACD protection, cold-water heat-exchange features, and a pneumatically balanced second stage for smoother performance. Compared to the LEG3ND Elite or MBS models, the LEG3ND keeps the same core breathing characteristics with simpler user controls.

Bottom Line: The Aqualung LEG3ND Dive Regulator is a premium scuba regulator built for divers who want smooth breathing, cold-water reliability, ACD protection, balanced second-stage performance, and dependable Aqualung engineering in a streamlined design.