ADJUSTABLE PRESSURE FUNCTION: This is a water pump pressure control switch for perfect pressure control. Pressure switch with 30-50 psi pressure setting range activates an electrically driven water pump within a power circuit when the adjustable rising and falling thresholds are reached. HIGH-QUALITY MATERIALS: The pressure control switch is made of high quality materials for strong strength and long durability. Large contacts for longer servicing life open on rising pressure. WIDE APPLICATION: 1/4inch Female NPT, standard water well pump replacement switch designed for use of electrically driven water well pumps of all types (, Submersible, Reciprocating etc). EASY TO USE: The water pressure control is easy to use, stable in performance, protects the motor, saves power, and can be used for a long time., Weight: 0.73413933246 pounds, Manufacturer: Jaywool