Feature: 1. Self Priming and Dry Rotation: 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 for protection in case of overpressure until the pressure is less than the threshold value and automatically restart. 3. Working Medium: The diaphragm pressure pump is suitable for liquids without oil, strong corrosion, strong acid and alkali, and solid particles. 4. For Dry and Ventilated Place: The diaphragm pressure pump shall be used in a dry and ventilated place. And the pump cannot be put into water for operation. 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: 165x99x62mm/6.50x3.90x2.44in Water Inlet Outlet Connector: G1/4, applicable to G3/8, hose barb Working Mode: Intermittent Usage: For spray machine, spray cleaning device with small flow and large pressure; Small flow water purification system, filter, chemical metering liquid adding; Transfer, distribution and filling of small flow food liquid; Applicable Industries: Medicine, shipping, fishery breeding, industry, agriculture, housekeeping and other industries. Package List: 1 x Diaphragm Pump Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.