S600 Second Stage.
Our top performing balanced piston first stage paired with our high performance air balanced second stage; this combination is SCUBAPRO's most popular regulator combination. The S600 truly matches the MK25's characteristics and thanks to its adjustment possibilities, it adapts to all diving conditions and all diver preferences. Ease of breathing is the essence of this system.

* The MK25 first stage is our absolute top performer and is a superior regulator thanks to its ultra stable intermediate pressure resulting in an extremely punctual and constantly high delivery of air. The means instant air flow at any cylinder pressure and water temperature for a real carefree dive.
* Paired with the air balanced high performance S600 second stage, this system is our top performer.
* Balanced flow valve provides constant & effortless air flow.
* Diver adjustable inhalation control enables personal adjustment of breathing effort.
* Diver adjustable Venturi Initiated Vacuum Assist (VIVA) dive/pre-dive control switch and extra high flow exhaust valve account for easy inhale & exhale.
* Super-flow hose for smooth air delivery.
* Precision moulded, lightweight components and anti-freeze materials provide high corrosion resistance and enhance cold water performance.

S600 Second Stage

* 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 / 6.8oz
* Air flow at 200 bar: 1850 l/min - 66 SCFM
* Maximum low pressure: 14 bar / 203 psi