The seal used on the structure under the force will never- leak,Hall imported, water-proof design to water Light and flexible appearance, small size Water pressure resistance : More than 1.75MPa working voltage range DC3.5 ~ 24V for 3.5V-24V / characteristics ( 8xQ-4)±5%, F-frequency, Q-flow- per liter/minute Can be perfectly used for water heaters, water dispenser, water purifier, water vending machine, Manufacturer: UncleS