Combining SCUBAPRO’S best-selling air-balanced second stage with its top- performing air-balanced piston first stage, SCUBAPRO MK25 EVO/S600 Dive Regulator System is a match made in diver heaven. With an air-balanced flow- through piston in a chrome-plated brass body, the regulator delivers a constant and effortless airflow unaffected by depth, tank pressure, or breathing rate. SCUBAPRO’s Extended Thermal Insulating System thermally insulates the mechanical elements, increasing cold-water resistance and delaying ice formation in extreme environments. The regulator includes two opposing high-pressure ports that let you position the first stage up or down, along with four high-flow and one axial super-high-flow low-pressure ports on a swivel turret. Dive confidently at varying depths with the S600’s intuitive user controls, which include a diver-adjustable inhalation effort knob, a first-rate purge, and a VIVA switch to control free flow. Driven to constantly innovate and improve the diving experience, SCUBAPRO builds high-quality equipment for the work, sport, and lifestyle of people whose passion is found below the surface. Features INT connector; suitable for cold, temperate, and warm waters; one-year warranty.