ScubaPro MK11 / S560 Regulator

Compatible with Nitrox up to 40% (recreational Nitrox limits) provides balanced diaphragm design air flow constant and effortless unaffected by depth, tank pressure, or breathing rate "Diver Adjustable" air flow "Diver Adjustable" venturi to prevent unwanted free-flow 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 first stage weight: 232 oz. airflow at 2900 psi/200 bar: > 5500/195 liters/min/SCFM: reduces inhalation effort when diving at varying depths and supply pressures lightweight technopolymer casing helps reduce jaw fatigue and improve diving comfort technopolymer inlet tube contributes to reliability and long life high-flow exhaust valve reduces exhalation effort to lower overall work of breathing second stage weight: 6.1 oz and airflow at 2900 psi: 1850 liters/min - 66 SCFM