ADJUSTABLE PRESSURE FUNCTION: This is a water pump pressure control switch for perfect pressure control. A pressure switch with a pressure setting range of 40-60 psi activates the electric water pump in the power circuit when adjustable rising and falling thresholds are reached. Widely Used: 1/4 inch female NPT, standard well pump replacement switch, designed for use with all types of electric well pumps (jet, submersible, reciprocating, etc.). High-quality material: The pressure control switch is made of high-quality material, which has high strength and durability. The water pressure control is easy to use, stable in performance, protects the motor, saves power, and can be used for a long time. Suitable for most pumps, such as self-priming pumps, water pumps, garden pumps, etc. It is also suitable for hot and cold water automatic pumps etc. Material: Plastic+Metal colour: grey Package Contents: 2 x Water Well Pressure Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.