FreeOcto

The high performance MK25/S600 reg system is known for its low work of breathing and tremendous reserve capacity. Year after year, in successive independent tests, it has consistently ranked as one of the top-performing regs on the market.

And now it's even better. With the introduction of the new patent-pending Extended Thermal Insulating System (XTIS), the MK25 EVO first stage now 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. The XTIS makes this possible by fully isolating the mechanical elements of the first stage from the cold, increasing its freezing resistance 30 percent over the current MK25 without compromising breathing performance. This makes the MK25 EVO the ultimate do-it-all first stage for all water temperatures.

The air balanced S600 second stage delivers smooth and easy inhalation and exhalation while offering efficient user controls, including a powerful purge, an inhalation effort control knob and Venturi Initiated Vacuum Assist (VIVA) dive/pre-dive switch.

Synonymous with SCUBAPRO quality and unbeatable engineering, the MK25 EVO/S600 is the preferred combo of professionals. In all water temperatures, in the most demanding dive conditions, this reg performs flawlessly.

Technical Information

MK25 EVO First Stage:

• 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 current MK25 without compromising breathing performance.
• New 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.)
• Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.
• Two high pressure and 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): 29.1/825; DIN 300 (oz/g): 20.9/592.
• Airflow at 2900psi (l/min/SCFM): >8500/301.
• Intermediate pressure (psi/bar): 130-142/9-9.8.

S600 Second Stage:

• Full metal valve housing is able to withstand years of aggressive diving.
• Air-balanced valve smoothes out the inhalation effort when diving at varying depths and supply pressures.
• User controls include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) dive/pre-dive switch.
• Super-flow hose features an oversized bore (larger inside hose diameter) that allows more air to flow on each inhalation.
• Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn't inhibit airflow.
• Weight: 6.8oz/193g.
• Airflow at 2900psi: 1850 l/min - 66 SCFM.
• Maximum low pressure: 203psi/14bar.

MK25 EVO BLACK TECH First Stage:

• Air balanced flow-through piston in a chrome-plated brass body provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
• Patent pending XTIS (Extended thermal Insulating system) fully insulates the inner mechanism from the environment, improving cold-water resistance by 30% and delaying ice formation in extreme cold-water conditions without com- promising breathing performance.
• New 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).
• 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 a 3364psi/232bar INT configuration.
• Weight: INT 232 (oz/g): 27.9/790.
• Airflow at 2900psi/200bar: (l/min/ SCFM): >8500/301.
• Intermediate pressure (psi/bar): 130-142/9.0-9.8.

G260 BLACK TECH Second Stage:SECOND STAGE Carbon

• ŽStylish and durable carbon fiber front cover and reinforced technopolymer casing are able to withstand years of aggressive diving.
• Lightweight carbon fiber design is 24 grams lighter than the standard G260, making it more comfortable for those long diving days.
• Durable Black Tech DLC coating on metal parts protects against the ravages of salt water and corrosion as well as minor scratches.
• Internal metal components, including air barrel and valve inlet tube, increase resistance to freezing when diving in extreme conditions.
• Air-balanced valve evens out the inhalation effort at varying depths and supply pressures.
• NEW. Water circulation holes in the front cover enhance underwater breathing smoothness.
• High-flow exhaust valve reduces exhalation effort 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.
• Large spring-based purge button is easy to use, even when wearing thick gloves.
• Reversible LP hose attachment makes it easy to adjust hose routing for any diving configuration.
• Super-flow hose features an oversized bore that allows more air to flow on each inhalation.
• Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn’t inhibit airflow.
• Includes a zippered fabric bag
• CE certified according the latest EN250A European Standards for all diving conditions,  including extreme cold water below 4°C
• Weight (without mouthpiece): 244g.

STELLAR BREATHING PERFORMANCE, OUTSTANDING RELIABILITY

The ultimate go-to air delivery system for cold water or technical diving.

When you team SCUBAPRO's flagship first stage with an air-balanced second stage engineered to excel in harsh, cold-water conditions, what you get is a regulator system that any hard-core recreational or technical diver can confidently take on any dive, anywhere in the world, and be assured of rock-solid performance and outstanding reliability. In other words, the MK25 EVO/G260.

The 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. This is made possible with SCUBAPRO's exclusive patent-pending Extended Thermal Insulating System (XTIS) that fully isolates the mechanical elements of the first stage from the cold, increasing its freezing resistance 30 percent over previous versions of the MK25 without compromising breathing performance. This makes the MK25 EVO the ultimate do-it-all first stage for all water temperatures.

The G260 is the most imitated air balanced second stage design of all time. First introduced in 1986 as the G250, it was the first regulator to introduce an adjustable Venturi Initiated Vacuum Assist (VIVA). Today's modern version features metal components (inlet tube, orifice, inhalation control knob and hose connector) for excellent cold-water performance. It also offers a left-right hose attachment option, making it a great choice for tech diving configurations.

Of course, you don't need to dive in cold water or find yourself in extreme diving conditions to fully appreciate the powerful yet easy-breathing attributes of this reg system. But if you're a demanding diver you can rest assured that with every breath you take, the MK25 EVO/G260 will deliver effortless airflow and consistent top-of-the-line performance.

The ultra-compact MK21/C370 regulator system delivers the ideal blend of comfort and performance.

About 20% smaller than SCUBAPRO's flagship MK25 but benefitting from the same core technology, the MK21 features a modern, cutting-edge design whose size and weight make it an excellent choice for travel divers.

Simple and reliable, the air balanced C370 delivers consistent airflow, ease of use and dependability, making it just the ticket for recreational divers in general, and dive travelers in particular.  Thanks to its compact size and light weight, this is also a fantastic regulator for our female divers and smaller sized divers. With any of these regulator systems in your dive bag you'll be ready to hit the road.

Together they create a no-nonsense air delivery system that delivers big performance in a small package.

A WINNING COMBINATION

Ease of breathing is the essence of this reg system -- and it looks good too.

The high performance MK25/S600 Deep Blue Titanium Core has long been known for its low work of breathing and tremendous reserve capacity. Year after year, in successive independent tests, it has consistently ranked as one of the top-performing regs on the market. Add the durable jewel-colored DEEP BLUE PVD (Physical Vapor Deposition) finish on both first and second stages, providing superior scratch- and corrosion-resistance, and you've got a reg system that breathes like a dream and looks dynamit

For 2016 this solid reg system benefits from another substantial upgrade with the addition of the MK25 EVO, featuring SCUBAPRO's patent-pending Extended Thermal Insulating System (XTIS). This exclusive engineering advancement 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. The XTIS makes this possible by fully isolating the mechanical elements of the first stage from the cold, increasing its freezing resistance 30 percent over the current MK25 without compromising breathing performance. This makes the MK25 EVO the ultimate do-it-all first stage for all water temperatures.

Like the MK25 EVO first stage, the air balanced S600 DEEP BLUE TITANIUM CORE is a special second stage. It features an interior titanium barrel for lightweight performance and additional corrosion resistance. The S600 DEEP BLUE TITANIUM CORE delivers effortless inhalation and exhalation. It's easy to use too, with efficient user controls that include a powerful purge, an inhalation effort control knob and Venturi Initiated Vacuum Assist (VIVA) dive/pre-dive switch.

Synonymous with SCUBAPRO quality and unbeatable engineering, the MK25 EVO/S600 DEEP BUE TITANIUM CORE is the preferred combo of many dive professionals. In all water temperatures, in the most demanding dive conditions, this reg performs flawlessly, and it looks great doing it.