The water pump is self-priming, it can be mounted above the tank, can be dried without damage. Self-priming gear pump is widely applied to liquid transfer, for spraying, circulation, filtration and dispensing. The direction of rotation can be changed so that the inlet and outlet are interchangeable. The 5V 2A power supply such as battery holder or computer USB is recommended for long time work. The pump uses high quality RS-360SH motor, and the maximum lifting range can reach 1.5meters.< /p>