Solenoid Valve Water Air Brass 220V 12V 24V High Pressure 13kg Normally Closed. Port Diameter:1/4″ 3/8″ 1/2″ 3/4″ 1″ 1 1/4″ 1 1/2″ 2″. Inner Flow Port Diameter: 2.5mm-50mm. Pressure: 01.3mpa, 1mpa=10kg. Use of fluid: air, water Oil. The product is made of high quality Brass, with strong sealing and good corrosion resistance. It has the characteristics of anti-oxidation, acid and alkali resistance, corrosion resistance, etc. And can operate stably for a long time under the harsh environment, without leakage of electricity and heat, and effectively extend the service life. Mainly used for pipeline water control, outdoor irrigation, water heater water supply, household pipeline and so on. We care about our valued buyers, if you have any questions, our Customer Service staff will be very glad to help you. We try our best to reply to your emails as soon as possible, however, due to the high volume of daily incoming emails and time zone difference, we may not be able to reply to your emails immediately. About item: For the functional products in our shop, we make sure that the functions are the same as the description, but the actual color and shape may look a little different from the pictures because of the technical improvement and manufacturing variance.