This pump is a diaphragm type that can be started with a voltage of 12 volts and has the ability to pump air and water, and its head reaches a height of two to three meters. The advantage that diaphragm pumps have is that with an electric motor with very low power consumption, they transfer air or water at a low speed but with high power, and to transfer water from a lower height, the pump does not need to be placed in the water and there is no need for ventilation. It is not necessary and it is enough to firmly connect a thin hose to the air and water inlet (suction part) and put the end of the hose into the water. A vacuum is created, then according to the pressure difference, the water rises from the hose and exits from its outlet pipe. Application: For example, this pump can be used to transfer water from a spring or river into a travel tent, and a small 6-12 volt battery or a car battery can be used to feed it. It is a tent and one end of the water hose is connected to the inlet pipe of the pump and the other end of the hose is placed in the river or spring, another hose can be connected to the outlet end of the pump to make it easier to use. By installing a switch for powering the pump, you will have an electric valve for your tent. Another application is in drip irrigation of trees and plants and use in greenhouses. Also, this pump can be used as an aquarium air pump. For this purpose, put the pump outside the aquarium and one end of the hose to the outlet of the pump and the other end of the hose inside the aquarium. This pump can also be used to drain aquarium water or move water between different tanks.