The MK17 EVO is a high-performance, balanced diaphragm first stage, designed for cold-water or demanding diving conditions. Its internal components are environmentally sealed, offering excellent protection against freezing and contamination, ensuring consistent performance in any water temperature. The compact design provides efficient gas flow, delivering air effortlessly to your second stage. Featuring a DIN 300 bar connector, it's compatible with a wide range of cylinder valves. Paired with a suitable second stage, this first stage provides reliable and consistent air delivery for an enhanced diving experience.