1st και 2nd Stage Regulators

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.

RACE CAR SLEEK, BATTLE TANK TOUGH

It's Diving's Ultimate Reg System

The premium high-performance MK25 EVO/CARBON BLACK TECH is not only the best-breathing reg in SCUBAPRO's line, it's also the leader in advanced design and materials and the toughest in terms of high-tech durability.

Like the original A700, the A700 CARBON's casing is full metal to take advantage of the extremely high heat exchange rate that makes this second stage such a great choice for cold-water diving. However, the screw-down front cover, in place of metal, is hand-made out of carbon fiber - the same material you find on aircraft and high-speed race cars. Carbon fiber is extremely lightweight and, unlike metal that can change shape when dropped or struck against a hard object, carbon fiber can resist substantial shocks without damage.

Performance-wise, the A700 CARBON retains the same muscular performance as the all-metal A700. Its air-balanced valve technology and oversized exhaust valve work in conjunction with a well designed sectional exhaust tee, a first-rate purge and responsive user controls to create a tech-tough breather with effortless inhalation and an ease of exhalation that is unmatched. It's now just lighter and tougher.

The A700 CARBON is teamed with the MK25 EVO, widely considered the gold standard in first stage performance. This air-balanced flow-through piston design delivers consistent and effortless airflow, regardless of depth, tank pressure, or breathing rate. With its ultra-freeze-resistant Extended Thermal Insulating System (XTIS) the MK25 EVO offers excellent thermal insulation by fully isolating the mechanical elements of the first stage from the cold, all without compromising breathing performance.

Finishing off this premium air delivery system is a DLC (Diamond-Like Carbon) BLACK TECH coating that's applied to both first and second stages. This unique coating not only lends a sleek technical look to the system, its scratch- and corrosion-resistant properties perform an important function in protecting the reg against the strains and stresses of technical diving as well as the ravages of the saltwater environment.

Put it all together and you have the MK25 EVO/A700 CARBON BLACK TECH, diving's ultimate muscle reg, built with high-tech materials and sporting race-car-sleek styling. It looks great, is ultra-durable, and delivers the best breathing performance around.

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.