SCUBAPRO teams its high performance first stage with a brand new air-balanced second stage. The MK25 EVO offers
excellent resistance to freezing, superb inhalation sensitivity and instant delivery of air on demand. The new S620 Ti
embraces the best features of SCUBAPRO’s renowned S600 in an upgraded, state-of-the-art design. Smaller and lighter
than the S600 but using the same-sized diaphragm.
The S620 Ti delivers excellent performance; work of breathing has been reduced by 37% over the S600, providing
effortless airflow under all dive conditions. The full titanium inlet tube is ultra-light, the large purge button improves water
circulation, and the new exhaust tee increases performance while directing bubbles out of the field of view. In all water
temperatures, in all dive conditions, this new reg system is a winner.
First Stage
• Air balanced flow-through piston in a chrome-plated
brass body provides constant and effortless airflow
unaffected by depth, tank pressure, or breathing rate.
• Patent pending XTIS (Extended thermal Insulating
system) fully insulates the inner mechanism from the
environment, improving cold-water resistance by 30%
and delaying ice formation in extreme cold-water con-
ditions without compromising breathing performance.
Key insulation system components are visible in blue.
• New spring insulating coating, body insulating bushing,
anti-freeze cap, bigger body and cap thread all work in
concert with the XTIS to improve cold-water perfor-
mance.
• Anti-freeze protection radically increases breathing
reliability when diving in the most extreme water tem-
peratures.
• Two opposing high pressure ports allow the first stage
to be positioned either up or down.
• Five high-flow low pressure ports on a swivel turret
maximize hose routing options.
• External intermediate pressure adjustment enables
technicians to fine-tune performance quickly and easily.
• Available in a 232bar INT and 300bar DIN configuration.
• Weight: INT 232: 790g; DIN 300: 572g.
• Airflow at 200bar: (l/min): >8500.
• Intermediate pressure (bar): 9.0-9.8.
Second Stage
• Air-balanced valve smoothes out the inhalation effort at
varying depths and supply pressures.
• Rugged reinforced technopolymer case and front cover
are able to withstand years of aggressive diving.
• Titanium barrel is rugged, anti-corrosion and
lightweight for long-term reliability.
• Uses the S600’s large diaphragm inside a compact
casing for maximum breathing sensitivity.
• Metal case construction enables the use of a larger di-
aphragm inside a compact casing, increasing breathing
sensitivity.
• User controls include an easy-grip diver-adjustable
inhalation effort knob and Venturi-Initiated Vacuum
Assist (VIVA) lever.
• 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.
• Weight: 179g.
• Airflow at 200bar: 1850 l/min.
