Metal second stage case construction uses a larger diaphragm inside a compact casing, increasing breathing sensitivity.

Air balanced second stage valve smooths out the inhalation effort when diving at varying depths and supply pressures.

Sectional exhaust tee and a first-rate purge help to deliver effortless inhalation and an ease of exhalation that is unmatched.

Easy-to-use, adjustable inhalation effort knob to achieve maximum, personalized comfort.

Super-flow hose features an oversized bore that allows more air to flow on each inhalation.

Air-balanced first stage diaphragm delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.

Environmentally sealed system prevents water and pollutants from fouling the inner mechanism and is extremely resistant to freezing.

Dry chamber is equipped with a double spring making it more compact and reliable.

Two opposing high pressure ports allow the first stage to be positioned either up or down, plus provide for an optimum hose/transmitter layout.

Swivel turret comes with four High-Flow LP ports plus one axial Super High-Flow LP port to maximize hose routing options for technical diving layouts.