1. Self-priming and dry running: The diaphragm pressure pump has a self-priming function. It can run dry for a short time (no more than 30 minutes). 2. Pressure protection switch: The diaphragm pressure pump is equipped with a pressure protection switch, which can automatically stop to protect itself in case of overpressure until the pressure is lower than the threshold value and restart automatically. 3. Working environment: The diaphragm pressure pump is suitable for oil-free liquids, strong corrosion, strong acid and alkali, and solid particles. 4. For dry and ventilated place: The diaphragm pressure pump should be used in a dry and ventilated place. And the pump cannot be put into water to work. 5. Convenient installation: The pump is easy to install. The water pump is exquisite, small in size, light in weight, large in flow, high in pressure and stable in performance. Specification: Item Type: Diaphragm Pump Material: Plastic Weight: Approx. 650g/22.93oz Size: