Designed for divers seeking reliable performance in an uncomplicated air delivery system, the MK11 is compact, user-friendly and affordable. The balanced diaphragm MK11, with its chrome-plated brass body specially designed to reduce size and weight, is an ideal travel companion. Its system features internal parts that are sealed from the elements. 

• Air balanced diaphragm first stage design delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
• Marine grade brass body has sealed internal parts to prevent water and pollutants from fouling the inner mechanism while enhancing cold-water performance.
• Two high pressure ports, two standard low pressure ports and two high-flow low pressure ports maximize hose routing options.
• External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.