Tax included

A state-of-the-art balanced piston first stage with 30% higher resistance to icing, with ultra-fast breathing response, instantaneous air supply and extremely high airflow, even in water the coldest.


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) fully isolates the mechanical elements from the cold, increasing freezing resistance 30 percent over the previous  MK25 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 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 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 either 3364psi/232bar INT or 4350psi/300bar DIN configurations

Weight: INT 232 (oz/g): 27.9/790; DIN 300 (oz/g): 20.1/572

Airflow at 2900psi/200bar: (l/min/SCFM): >8500/301

Intermediate pressure (psi/bar): 133-142/9.2-9.8

Specific References

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