Features:

MK17 EVO First Stage

• Air balanced 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.
• More compact design features a smaller dry ambient pressure chamber and spring, although the bulletproof inner parts remain the same.
• Dry ambient pressure chamber increases freezing resistance, ensuring consistent airflow in the coldest conditions.
• Substantial increase in airflow -- 6900 l/min versus 6500 l/min - includes improved balance of air supply pressure.
• Two high pressure and four high-flow ports maximize air delivery and hose routing options.
• High-flow performance is available from all four LP ports which are configured for optimum hose routing.
• Available in a 3364psi/232bar INT configuration.
• Weight (without mouthpiece): INT 232 - 30.3oz/860g.
• Airflow at 2900psi/200bar: 6900 l/ min - 242 SCFM.
• Intermediate pressure (psi/bar): 133-142/9.2-9.8.

S620 Ti Second Stage

• Air-balanced valve smoothes out the inhalation effort at varying depths and supply pressures.
• Rugged reinforced technopolymer case and front cover with stainless steel frame looks good plus is able to withstand years of aggressive diving.
• Titanium barrel is rugged, anti-corrosion and lightweight for long-term reliability.
• Large diaphragm fits inside a more compact casing for maximum breathing sensitivity.
• User controls include an easy-grip diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) lever.
• New exhaust tee increases performance while directing bubbles out of the field of view.
• Newly designed Compact Hi-Flow mouthpiece, exclusive to the S620 Ti, is mounted on an enlarged mouthpiece pipe to improve airflow as well as mouth comfort.
• Super-flow hose features an oversized bore that allows more air to flow on each inhalation.
• Specific matching colors (blue, pink, yellow, purple, white and orange) on mouthpiece and hose protector are available as an accessory.
• Weight (without mouthpiece): 6.3oz/179g.
• Airflow at 2900psi/200bar: 1850 l/min - 66 SCFM.

Description: