Aeris’ 400 Pro DVT regulator’s patented dry valve design means you won’t have to sacrifice performance and durability in order to have a regulator that won’t flood. This pneumatically-balanced second stage will be the work horse of your dive gear; it will keep you breathing easily dive after dive. The diver-adjustable breathing valve allows you to control the airflow to match your breathing rate and body’s air needs.

The 400 Pro DVT’s lightweight design and patented orthodontic mouthpiece mean you’ll be comfortable and breathing easily throughout your dive and won’t face post-dive jaw discomfort once you’ve returned to the surface.
The Aeris AT400 Pro Regulator has a 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 AT400 Pro 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 on the Aeris AT400 Pro Regulator 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 The Aeris AT400 Pro Regulator from free-flowing while on the surface.

  • Pneumatically balanced
  • Diver-adjustable inhalation effort
  • Adjustable venturi switch
  • Nitrox compatible to 40%

The Aeris AT400 Pro Regulator has a 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.

DVT is a revolutionary regulator technology designed to automatically eliminate moisture and contaminants from entering your first stage, even if the dust cap is accidentally left off. DVT eliminates corrosion of critical internal components, bacteria, hose deterioration, and damaged gauges and computers.

What Others Say About This Dive Regulator

Verified Buyer from LeisurePro
This regulator is simply amazing. Breathing is effortless, even at 100+ feet. The dry valve technology does a great job (definately saved the day on numerous occasions). I’ve never had any problems with it, and it doesn’t cause jaw fatigue.

Advanced Diver
I have 55 dives on this regulator, and have used it everywhere from Northern California to Cozumel. I have never had a single issue with it. Great reg at a reasonable price.

Padi instructor
Although my reg is still fairly new, I have put more than a dozen dives on it. It’s been to 107fsw and has performed flawlessly. This reg breaths for you! Forget jaw fatigue. The DVT feature is very handy and the second stage adjustments are are set-it-and-forget-it simple

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