With the MK17 EVO 2/C370 you have a compact and lightweight regulator system ready to explore dive locales the world over. The new MK17 EVO 2 is a sealed diaphragm first stage with a dry chamber based on a twin spring layout and two HP ports at 15-degree angle to make hose routing easier. The compact C370 offers convenient user controls including a diver-adjustable inhalation effort knob, a coaxial dive/pre-dive lever and a large, easy-to-activate purge button.

• Sealed balanced diaphragm design makes for the ultimate compact first stage for cold water or contaminated diving conditions.
• Air-balanced diaphragm delivers consistent and effortless airflow, regardless of depth, tank pressure, or breathing rate.
• Dry chamber is completely environmentally sealed with a dual diaphragm system that keeps out contaminated water. The rib is designed to enhance heat exchange, making the first stage cold water-proof.  
• Two opposing high-pressure ports positioned on a 15º angle allow the first stage to be positioned either up or down, plus provide an optimal hose/transmitter layout.
• C370 second stage's air-balanced valve smooths out the inhalation effort at varying depths and supply pressures
• Compact, rugged fiberglass-reinforced nylon C370 casing takes up little space in a dive bag
• User controls include a diver-adjustable inhalation effort knob and coaxial dive/pre-dive lever
• Large purge button is easy to activate, even wearing thick gloves
• Super-flow hose features an oversized bore that allows more air to flow on each inhalation
• Compact Hi-Flow mouthpiece improves airflow as well as mouth comfort, fitting all mouth sizes, from smallest to largest
• CE certified to EN250A European Standards for all diving conditions, including extreme cold water.