The M-ventil Eco is a quality valve with pressure fittings for 6 mm flexible hose with a maximum operating pressure of 1 bar. The power consumption is only 5 watts of electrical energy to prevent overheating. The valve can be connected to the corresponding CO2 units. In conjunction with a pH controller, automatic control of the CO2 supply and pH can be achieved. If used with a timer, the valve will provide a night shut off system. Only suitable for gases.