Offering effortless air delivery and outstanding reliability, this is the go-to air delivery
system for cold water or technical diving. There’s no better example of solid first stage
performance in all water temperatures than the MK25 EVO. Teamed with the venerable
G260, this system can be relied upon to deliver top-of-the-line performance in the
most extreme conditions.
◊ Air balanced flow-through piston in a chrome-plated brass body provides constant
and effortless airflow unaffected by depth, tank pressure, or breathing rate.
◊ Patented XTIS (Extended thermal Insulating system) thermally insulates the inner
mechanism from the environment, improving cold-water resistance by 30% and
delaying ice formation in extreme cold-water conditions without compromising
breathing performance. Key insulation system components are visible in blue.
◊ 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 performance.
◊ Anti-freeze protection radically increases breathing reliability when diving in the
most extreme water temperatures.
◊ Two opposing high pressure ports allow the first stage to be positioned either up
◊ Four high-flow and one axial super 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 either 3364psi/232bar INT or 4350psi/300bar DIN configurations.
◊ DIN version comes with a dual-compound wheel that features an ergo shape and
soft grip on a rugged black nylon frame.
◊ Airflow at 2900psi/200bar: (l/min/SCFM): >8500/301.
◊ Intermediate pressure (psi/bar): 130-142/9.0-9.8.
◊ Air-balanced valve smoothes out the inhalation effort at varying depths and supply
◊ Nylon fiberglass design features SCUBAPRO’s biggest second stage casing and
diaphragm for the ultimate in breathing sensitivity, regardless of position in the
◊ Metal components, including metal air barrel and metal valve inlet tube, increase
resistance to freezing when diving in extreme conditions.
◊ High-flow exhaust valve reduces exhalation for better overall breathing comfort.
◊ A diver-adjustable inhalation effort knob fine-tunes air delivery to suit changing
depths, water conditions and personal tastes.
◊ Venturi-Initiated Vacuum Assist (VIVA) dive/pre-dive switch prevents free flows in
cold water or when used as an octopus.
◊ Reversible hose attachment allows you to easily adjust hose routing for tech diving
◊ Super-flow hose features an oversized bore that allows more air to flow on each
◊ Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn’t inhibit airflow.
◊ Airflow at 2900psi/200bar: 1800 l/min – 64 SCFM.
Combines the features of the R195 with a high visibility yellow cover and a 1 meter long
yellow hose for easy sharing.
◊ Classic Downstream Valve
◊ Adjustable VIVA
◊ Reversible Hose Attachment
◊ Larger Diaphragm
◊ Super comfort High-flow mouthpiece