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The MK17/C300 regulator combines the new OFD technology with the sturdiness of our balanced diaphragm first stage.

- The Optimal Flow Design valve (OFD) for reliable and high air flow, improving work of breathing compared to a downstream valve.

- Diver-adjustable coaxial VIVA for powerful inhalation assistance and prevention of free-flow.

- Diver adjustable inhalation control for personalized breathing effort.

- Redesigned mouthpiece tube allows better exhaust air flow.

- Available with either 232bar INT or 300bar DIN fi rst stages.

- Engineered for use in cold water, polluted or harsh environments.

- Consistent performance at all tank pressures at any depth.

- The dry ambient pressure chamber provides better protection and performance.

- The balanced diaphragm, prevents entry of water into the first stage mechanism.

MK17 First Stage

-Balanced diaphragm

-Chrome plated brass body

-Cold water: Anti-Freeze protection & Dry chamber

-Externally adjustable intermediate pressure

-Low pressure ports: 4 (2 HFP)

-High pressure ports: 2

-Tank connection: INT 230 bar / DIN 300 bar

Weight: : INT 230 850g / 30oz - DIN 300 625g / 22oz

Air Flow at 200bar: >6500 l/min - 230 SCFM

Intermediate pressure: 9-9.8 bar / 130-142 psi

C300 Second Stage:

-OFD downstream valve

-Coaxial flow

-Diver-adjustable inhalation effort

-Diver-adjustable Venturi-Initiated Vacuum Assist (VIVA)

-Super-flow hose

-High comfort orthodontic mouthpiece

-Technopolimer valve housing

Weight: 175g / 5.2oz

Air flow at 200 bar: 1550 l/min - 50 SCFM Maximum low pressure: 14 bar / 203 ps