1、This diaphragm pump is made of engineering plastics, which is sturdy and durable for long service life. 2、When motor is overheated, the pump will automatically stop, the pump will automatically restart when the temperature drops to a tolerable rang 3、Standard external thread interface, our diaphragm pump is easy to install and operate. 4、Equipped with anti‑vibration iron plate mounting feet, which can reduce the working noise more greatly. 5、The surface of the iron plate adopts galvanized anti‑rust treatment, which is not easy to rust and corrosion in humid environment. Item Type: Diaphragm Pump Material: Engineering Plastics Volume of Solid Impurities: ≤0.1 Particles: Not Larger Than 0.2mm Environment Temperature: ≤50℃ Medium Temperature: 0-65℃ PH Range: 5.0-10 Flux Rate: 15.0L/Min Head: Approx. 38m / 41.5yd Suction Range: 3 meters / 9.8ft Gallon: 4.0GPM Application: Car Wash, Filling Machine, Garden Agricultural Spraying, Agricultural Spray, Water Heater, Household Water, Yacht, Shower, Green Spraying Mist. 1 x Diaphragm Pump 2 x Quick Installation Connector 1 x Filter 1 x User Manual