1WATER PRESSURE CONTROL: This is a pump pressure control switch for perfect pressure control, useful and practical 2ADJUSTABLE PRESSURE: A pressure switch with a pressure setting range of 0.140.28Mpa activates the electric water pump in the power supply circuit when an adjustable rise and fall threshold is reached 3WIDELY USED: 3/8in NPT female thread, standard well pump replacement switch, designed for all types of electric well pumps, such as jet, submersible, reciprocating, etc. 4DURABLE MATERIALS: Pressure control switches are made of excellent materials for high strength and durability. Large contacts for extended service life open when pressure rises 5EASY TO USE: Water pressure control is easy to use, stable performance, protect motor, save electricity, can be used for a long time