Technical Information

First Stage MK17 EVO 2 

MK17 EVO 2 FIRST STAGE
◊ Design allows it to be substantially smaller and lighter than the MK17 EVO and the
MK19 EVO.
◊ Design is based on a forged brass body and a dry chamber with a twin spring
layout for compactness and reliability.
◊ 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 diaphragm 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.
◊ Due to the high-pressure port positioning, a transmitter adapter is not needed.
◊ Weight: INT 232: 797g ; DIN 300: 572g
◊ Intermediate pressure (230 bar): 9.2-9.8

Second Stage S600

• Air-balanced valve smoothes out the inhalation effort when diving at varying depths and supply pressures
• Metal valve housing (barrel) is able to withstand years of aggressive diving
• User controls include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) dive/pre-dive switch
• Super-flow hose features an oversized bore that allows more air to flow on each inhalation
• Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn't inhibit airflow
• Airflow at 200bar: 1850 l/min