Feature: 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. Specification: Item Type: Diaphragm Pump Material: Engineering Plastics Input Voltage: 12V/24V 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.. Package List: 1 x Diaphragm Pump2 x Quick Installation Connector1 x Filter1 x User Manual Note: 1. When the water pump is working, it is necessary to ensure a smooth drainage of the water pump to avoid holding the pump and causing damage to the pressure switch.2. If you hear the abnormal sound of the switch ticking during operation, please turn off the pump immediately and increase the pressure appropriately.3. The motor has a slight waterproof function. There is no need to worry too much about splashing a little water (you can wipe it dry), but it is strictly forbidden to soak the pump motor in water. If the pump is used in the open air, it should be covered to prevent water from splashing into the motor. Cause power failure, leakage or motor damage.4. The water inlet must be installed with a filter device, and liquids with impurities cannot be sucked in, otherwise it will easily block the water pump, which will cause the pressure to drop and the flux rate will decrease, or even the water cannot be pumped.5. It is strictly forbidden to use this machine without the filter connected, and the density of the filter is preferably above 80 mesh (impurities will cause damage to the pump).6. The water pump works intermittently and cannot work uninterrupted for 24 hours7. Please disconnect the connection between the motor pump and the power supply when it is not used for a long time or when it is temporarily suspended.8. The water pump has a pressure switch adjustment function. The pressure can be adjusted appropriately according to its own actual needs, but it cannot be adjusted too small or too large. If the pressure is too small, the switch will easily start and stop frequently and cause burnout. If the pressure is too high, The switch is likely to be ineffective, causing the pump to fail to shut down normally.9. Please confirm the power supply before use, the power supply parameters must be consistent with the input parameters of the motor pump