This is the Cressi AC10V Master Cromo Scuba Diving Regulator 1st and 2nd Stage Features: Working pressure: 230 bar Realized in copper-coated, nickel and chromium plated brass The sintered conical filter protect from any impurity Weight without hose: 207 gram JACKETED HOSE extremely light and flexible weight: 153 gram The low pressure ports are located on a rotating turret that ensures that regulator and instrument connections are always in the right position. The rotating turret swivels on 360Adeg axis and features five low-pressure ports designed to allow the use of more connections without interfering between them. The air passages are enlarged to allow for peaks performance of 2,700 liters/minute (95 cu ft/minute). The conical filter has a large surface area and allows 200% more air flow than standard models. It&';s easy to change from DIN to INT, both 200 and 300 bar. Its technologically advanced design delivers consistent intermediate pressure and high performance even with low tank pressures. "