Aeris AT400 PRO Regulator - Scuba Diving Regulators

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Pneumatically balanced, user-adjustable second stage. This pneumatically balanced, adjustable second stage is sure to provide you the highest performance for many years. The pneumatically balanced second stage provides the lowest possible inhalation effort. The second stage adjustment allows you to adjust your breathing effort, fine-tuning the regulator to your desired setting throughout your dive.

The venturi assist deflector vane directs airflow from the valve directly to the mouthpiece producing a smooth "venturi assisted" inhalation. Turning the venturi assist down, to a pre-dive position, prevents regulator free-flow while on the surface.

• Pneumatically balanced

• Diver-adjustable inhalation effort

• Adjustable venturi switch

• Nitrox compatible to 40%

• Paired with your choice of the new AT400 Over-Balanced Diaphragm First Stage featuring DVT (Dry Valve Technology)

AT400 First Stage
High performance over-balanced diaphragm first stage with environmental seal and the added protection of DVT (Dry Valve Technology).

• 4 LP ports, 2 HP ports for maximum hose placement

• DVT eliminates corrosion of critical internal components, bacteria, hose deterioration, and damaged gauges and computers.

• Nitrox compatible to 40%