The first stage comes standard with a unique "dry" environmental sealing system that completely eliminates the need for messy silicone oil or grease filling. It is designed for use in all water conditions. It is ideal for professional use and for diving in cold or contaminated conditions.

The second stage uses a pneumatically balanced valve system and is the most advanced diver adjustable breathing system available. Independent performance tests have established that this regulator can supply air within the recommended limits of breathing resistance to a depth in excess of 230 ft.

Over-balanced first stage actually increases interstage pressure as you go deeper, compensating for the denser air.
The high-gloss black chrome gives the first stage a rich look.
The new ATX 200 second stage is small and light. This results in less jaw fatigue and less drag.
Improved exhaust gas flow reduces exhalation resistance and therefore, the overall work of breathing of the regulator.
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