1、SELF PRIMING: This diaphragm water pump has self priming function, can be used even if it is located above the water tank. 2、SUPPORT DRY OPERATION: Positive displacement diaphragm pump, capable of dry operation, with a working noise of around 55 to 60db. 3、COPPER MOTOR: Electric booster pump adopts all copper wire motor, with long service life, no leakage, the pressure switch is replaceable. 4、DUAL PROTECTION: When the pressure increases, the sealing pressure switch will automatically shut down the pump, and the motor will automatically stop and restart if it overheats due to overload. 5、WIDE APPLICATION: The high pressure pump can be used in marine yacht, RV, automobile, household, general industry, agricultural spray, etc.