First Stage
•Compact machined first stage based on the expedition tested Apeks DS4 platform
•Unique over-balanced diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth
•With 2 HP ports and 4MP ports
Second Stage
•Compact and lightweight second stage improves comfort and helps reduce jaw fatigue on long duration dives
•High performance pneumatically balanced lever operated poppet valve
•Large, over moulded self-flushing and controllable purge button
•Ergonomic Venturi lever is easy to use and locate
•Flexible nylon braided hose has better cold water performance than a traditional rubber hose
•Standard metallic hose connection for interchangeability
•Comfo-bite mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place
•Re-useable mouthpiece clip makes it simple to change mouthpieces in the field
•Durable and flexible rubber exhaust tee provides excellent bubble diversion