HeroNeo&reg; New Electric Solenoid Valve Magnetic DC 12V N/C Water Air Inlet Flow Switch 1/2" Inlet and outlet:hose barbs for 1/2" (outer diameter) hose Pressure:0.02- 0.8Mpa, Max fluid temperature:100C Operation mode:normally closed Valve type:diaphragm (operated by Servo) Usage:water and low viscosity fluids,Please note it is not suitable for use with gravity fed systems