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, easy to install.impeller is inlaid with a stainless steel shaft and is for always wear-resistant Water pressure resistance: More than 1.75MPa working voltage range DC3.5 ~ 24V Can be perfectly used for water heaters, water dispenser, water purifier, water vending machine for 3.5V-24V / characteristics ( 8xQ-4) ±5%, F-frequency, Q-flow per liter / minute, Manufacturer: Tsophreniq