H-75P First Stage

First Stage Features

The unsurpassed performance of this first stage results from a balanced piston design which delivers significantly more gas than any other first stage while leaving performance completely unaffected by changing tank pressure.

• Balanced, flow-through, freeze-resistant piston provides high performance in all conditions
• Rotating swivel provides flexibility and super clean hose routing
• Two high pressure ports, five High Flow intermediate/

H-50D First Stage

First Stage Features

This balanced, environmentally sealed diaphragm provides premium performance and rock solid protection in the absolute worst environmental conditions.

• Balanced, environmentally sealed diaphragm
• Dry balance chamber ensures solid performance in the worst conditions
• Two high pressure ports, four intermediate/low pressure ports
• 300 bar DIN connection, compatible with 40% Nitrox

Halo Second Stage, w/ 40” LP hose

Second Stage Features

The Halo provides amazingly smooth performance in all conditions providing unsurpassed performance with enhanced technology.

• Balanced, adjustable downstream valve
• Adjustable control knob refines inhalation resistance
• Air Control Vane (A.C.V.) utilizes vacuum power to reduce work of breathing
• Compatible with 40% Nitrox

Aura Second Stage, w/ 40” LP hose

Second Stage Features

Strong performance and a simple, non-adjustable design make the Aura an ideal reserve and/or recreational regulator.

• non-adjustable downstream valve
• Air Control Vane (A.C.V.) utilizes vacuum power to reduce work of breathing
• Compatible with 40% Nitrox

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 molded, lightweight components and anti-freeze materials provide high corrosion resistance and enhance cold water performance.

The MK25 teamed with our exceptional new A700, offers superior ultra-high airflow system for maximum performance in all temperatures and diving conditions.
SCUBAPRO is synonymous with piston-controlled first stages. Our MK25 underscores this heritage with an array of patented features and ultra-stable intermediate pressure, for an extremely punctual and consistent high delivery of air, ensuring unfailing performance.
The MK25 balanced piston first stage is our absolute top performer, making this system our very best!
Air balanced flow-through piston provides constant and effortless air flow unaffected by changing tank pressure.
Newly polished chrome edition, available uniquely with A700 system, with 5 low pressure and 2 high pressure ports plus swiveling turret for convenient arrangement and personalisation of your gear.
Anti-freeze protection for all diving temperatures and externally adjustable intermediate pressure for easy maintenance.
Available in either 232bar INT or 300bar DIN configuration.

Cold water divers or those frequenting harsh environments will appreciate this perfectly matched pair. The A700 is a complete complement to the MK17, a high performing balanced diaphragm fi rst stage engineered exactly for such conditions.
Balanced technology provides consistent performance at all tank pressures, at any depth and optimizes the second stage performance.
Dry ambient pressure chamber provides better protection and performance in cold water, prevents water entry, enhancing trouble-free operation.
Balanced diaphragm design, with ultra-fast fl ow to the second stage to obtain the lowest possible work of breathing at depth.
Available in either 232bar INT or 300bar DIN configurations

Two opposite high pressure ports- The arrangement of high and low pressure hoses is crucial to diving comfort. Two opposite high pressure ports allow for an individual positioning of the first stage (pointing up or down). This allows the diver to position the gauges either on the right or left side and increases the freedom of movement for head and neck.
Multiple low pressure ports. For ultimate freedom in the arrangement of low pressure hoses, the MK25 accommodates five HF (high flow) ports on a swiveling turret, which allows for 360 degree swivel of hoses. The MK17 and MK11 feature four stationary low pressure ports, two of them HF. High flow ports deliver about 15% more air than conventional ports.
DIN/INT first stage configurations. To ensure worldwide compatibility, all SCUBAPRO regulator systems are available in a 200bar INT version as well as 300bar DIN versions.
Externally adjustable intermediate pressure. Allows authorized SCUBAPRO service technicians to quickly fine tune or make adjustments after maintenance without the need to disassemble the first stage.
The Optimal Flow Design valve (OFD) for reliable and high air flow, improving work of breathing compared to a downstream valve.
Diver adjustable coaxial VIVA for powerful inhalation assistance and prevention of free flow.
Diver adjustable inhalation control for personalized breathing effort.
Redesigned mouthpiece tube allows better exhaust airflow.

Our compact C200 System offers great breathing performance for avid recreational divers. The MK11 is compact and lightweight without affecting reliability or performance.

The Optimal Flow Design valve (OFD) for reliable and high air flow, due to the incorporation of new technology which improves work of breathing performance compared to a classic downstream valve second stage
Diver adjustable coaxial VIVA for powerful inhalation assistance and prevention of free flow
Redesigned mouthpiece tube allows better exhaust airflow
Anti-scratch cover
Diaphragm system prevents entry of water and pollutants
Balanced first stage allows prompt delivery of air at all tank pressures
Two opposite high pressure ports- The arrangement of high and low pressure hoses is crucial to diving comfort. Two opposite high pressure ports allow for an individual positioning of the first stage (pointing up or down). This allows the diver to position the gauges either on the right or left side and increases the freedom of movement for head and neck.
Multiple low pressure ports. MK11 features four stationary low pressure ports, two of them HF. High flow ports deliver about 15% more air than conventional ports.
DIN/INT first stage configurations. To ensure worldwide compatibility, all SCUBAPRO regulator systems are available in a 200bar INT version as well as 300bar DIN versions.
Externally adjustable intermediate pressure. Allows authorized SCUBAPRO service technicians to quickly fine tune or make adjustments after maintenance without the need to disassemble the first stage.