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Scubapro S600 MK25 EVO Regulator with R195 Octopus

Scubapro S600 MK25 EVO Regulator with R195 Octopus
Scubapro S600 2nd Stage Scubapro R195 Octopus Scubapro MK25 Evo 1st Stage Scubapro S600 MK25 EVO R195 Set

The Scubapro S600 regulator with MK25 EVO first stage and Scubapro R195 Octopus adapt to all conditions and all diver preferences. Ease of breathing is the essence of this system.

SKU 12.971.960
DIN or A-Clamp?

The Scubapro S600 Regulator with MK25 Evo first stage and Scubapro R195 Octopus adapt to all diving conditions and all diver preferences. Ease of breathing is the essence of this system. Scubapro's top performing balanced piston first stage is paired with a high performance air balanced second stage with a solid and reliable backup octopus in this most popular regulator combinations.

A top performing balanced piston first stage paired with a high performance air balanced second stage; this combination is SCUBAPRO's most popular regulator combination. The package is complemented by the popular and reliable R195 second stage octopus making it future proof for any twin tank diving. The S600 truly matches the MK25's characteristics and thanks to its adjustment possibilities, it adapts to all diving conditions and all diver preferences.

Regulator Set includes:

1 x Scubapro MK25 EVO DIN Piston First Stage
1 x Scubapro S600 Adjustable Second Stage
1 x Scubapro R195 Octopus
1 x Scubapro Regulator Hose
1 x Scubapro Yellow Octopus Hose


A second stage regulator must translate natural breathing behaviour into mechanical reality. A high quality second stage can significantly reduce stress and enhance diver safety by providing smooth, low-effort breathing response, resulting in ample yet controllable quantities of air.

The designation balanced and classic downstream are also distinguishing marks for second stages and again imply ultimate flow performance and stability in addition to reliability, simplicity and solid performance.

The air-balanced valve technology of S600 second stage features a balancing chamber in the second stage mechanism, slightly offsetting the force of the downstream air entering from the first stage. This allows reduced spring tension and decreases the inhalation resistance to the lowest possible level. The result is super smooth breathing in all conditions.

  • Air balanced valve
  • Diver-adjustable inhalation effort
  • Diver-adjustable Venturi-Initiated Vacuum Assist (VIVA)
  • Super-flow hose
  • High comfort orthodontic mouthpiece
  • Full metal valve housing
  • Weight: 193g
  • Air flow at 200 bar: 1850 l/min - 66 SCFM
  • Maximum low pressure: 14 bar


Scubapro MK25 EVO first stage lets you enjoy an ultra-fast breathing response, instant delivery of air on demand, great sensitivity and extra-high airflow - regardless of how cold the water is.

Air-balanced flow-through piston design provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.

Patent-pending XTIS (Extended Thermal Insulating System) fully isolates the mechanical elements from the cold, increasing freezing resistance 30 percent over the old MK25 without compromising breathing performance. This makes the MK25 EVO the ultimate do-it-all first stage for all water temperatures.

Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures. The spring insulating coating, body insulating bushing (non-metal cylindrical interface separating metal parts from water), anti-freeze cap, bigger body and cap thread all work in concert with the XTIS to improve cold-water performance. (Key insulation system components are visible in blue.)

  • 2 x High Pressure Ports
  • 5 x Low Pressure Ports
  • 300bar DIN connection.
  • Weight: 572g
  • Airflow at 2900psi (l/min/SCFM): >8500/301.
  • Intermediate pressure 9-9.8 bar.



When you need a safe second you tend to need it quickly, so you better be able to see it, and it better be ready to deliver some air. The R195 Octopus does that and much more.

It combines a classic downstream valve with a large diaphragm, functional purge button and VIVA switch for smooth and easy breathing and simple operation. Its robust construction, smooth air delivery and reliability makes the R195 a sensible octopus.

The R195 Octopus combines all the features of the standard R195 with a high visibility yellow cover and a 39-inch yellow hose that makes it easy to share with a buddy in need.

Metal valve housing is built rugged and increases overall reliability.

Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn't inhibit airflow.

  • Weight (without mouthpiece): 6.3oz/178g.
  • Airflow at 2900psi/200bar: 1400 l/min - 50 SCFM
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