Introducing the New Aeris Advantage Limited Lifetime Scuba Regulator Parts Replacement Program. 

The AERIS ADVANTAGE Program provides free standard replacement parts for your AERIS scuba regulator.  The program includes all AERIS first stages and second stages.  Register your scuba regulator online with AERIS, and  you are automatically enrolled in the program. There is no additional charge for this program.

Combine the Advantage program with the NEW Dry Valve Technology (DVT) and you have one incredible scuba regulator!  DVT is a revolutionary regulator technology designed to automatically reduce moisture and contaminants from entering your first stage inlet, even if the dust cap is accidentally left off.

The Aeris AT400 Pro Scuba Regulator has a 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 the new AT 400 Balanced Diaphragm First Stage featuring DVT (Dry Valve Technology)

AT 400 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%