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.