REGULATOR, OXYGEN 0-15LPM MINI Drive regulators feature a protective contents gauge and a built-in suction relief valve for safety. Mini regulators offer the same function as standard regulators while facilitating an easier fit into oxygen carry bags Easy-to-operate single selector knob Lightweight and durable design Meet or exceed accuracy standards for ASTM, American National and CGA Inlet Pressure: 300 - 3,000 PSI Outlet pressure: 50 PSI UL Approved