Scubapro MK25 EVO/S620Ti - Dive Regulator System with R195 Octopus Second Stage SCUBAPRO teams its high performance first stage with its new air balanced second stage. The MK25 EVO offers excellent resistance to freezing, superb inhalation sensitivity and instant delivery of air on demand. The new S620 Ti embraces the best features of SCUBAPRO\'s renowned S600 in an upgraded, state-of-the-art design. Smaller and lighter than the S600 but using the same-sized diaphragm, the S620 Ti delivers effortless airflow under all dive conditions. The full titanium inlet tube is ultralight, the large purge button improves water circulation, and the new exhaust tee increases performance while directing bubbles out of the field of view. In all water temperatures, in all dive conditions, this new reg system is a winner. Features: Air balanced flow-through piston in a chrome plated brass body provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate. Patented XTIS (Extended thermal Insulating system) thermally insulates the inner mechanism from the environment, improving cold-water resistance and delaying ice formation in extreme cold-water conditions without compromising breathing performance. 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. Four high-flow and one axial super 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. Air balanced second stage valve smoothes out the inhalation effort at varying depths and supply pressures. Second stage’s rugged reinforced technopolymer case and front cover with stainless steel frame looks good plus is able to withstand years of aggressive diving. Full titanium barrel is rugged, anti-corrosion and lightweight for long-term reliability. Large diaphragm fits inside a more compact second stage casing for maximum breathing sensitivity. User controls include an easy-grip diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) lever. Newly designed Compact Hi-Flow mouthpiece, exclusive to the S620 Ti, is mounted on an enlarged mouthpiece pipe to improve airflow as well as mouth comfort. Full regulator system package. Watch this short video to find out more about the S620 Ti Regulator: Technical Features: Product Weight (M): 1.4 kg Water Temperature: Cold, Temperate, Warm 1st Stage Materials: Chrome-Plated Brass 1st Stage Type: Piston 2nd Stage Materials: Titanium Components 2nd Stage Series: R Series 2nd Stage Design: Balanced Adjustable 2nd Stage: No Connector Types: INT  /  DIN Nitrox Mix: Up to 40% HP Ports: 2 LP Ports: 5 UPC: 4048336364980 (INT) / 4048336364997 (DIN) Product Code: 12.620.900 (INT) /  12.620.910 (DIN) Scubapro R195 Octupus Second Stage: 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 OCTO does that and much more. The R195 OCTO is a modern second stage design that 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 OCTO a sensible safe second stage for all divers and a perfect choice for deco tanks thanks to its extra-long high visibility hose and reversible hose attachment. Features: High visibility yellow cover makes it easy to see when it comes time to share air with a buddy in need. Rugged reinforced technopolymer casing is fitted with a large diaphragm for the ultimate in breathing sensitivity, regardless of position in the water. Classic downstream valve comes with a VIVA switch to control free flows. Metal valve housing is built rugged and increases overall reliability. Yellow super-flow hose is 39in/1m long and features an oversized bore that allows more air to flow on each inhalation. Reversible hose attachment makes it easy to use on deco tanks. Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn\'t inhibit airflow. Technical Features Product Weight (M): 0.4 kg Activity: Recreational, Technical 2nd Stage Design: Unbalanced Adjustable 2nd Stage: Yes Hose Length (M): 99 cm UPC: 4048336097284 Product Code: 11.331.200