Features: Standard well pump replacement switches, designed for all types of electric well pumps. It is make of Brass with highly strength and durability. This is a water pump pressure control switches for perfect pressure control. There are two springs in the controller for convenient and accurate adjustment. The pressure threshold can be adjusted through the well pump pressure switches. The pump pressure can be adjusted by this switches, you can set the adaptive pressure according to the work needs. Easy to use: water pressure control is easy to use, stable performances, motor protection, long terms use. Specifications: Component: Brass Type: Single rod pressure switches/Double rod pressure switches Size: about 93x66x103mm/3.66x2.6x4.06inch voltages: AC220V current: AC15A Working temperature: -15℃-40℃ Thread specification: 1/4=12.5mm Power limit: 1.5KW Setting pressure: 0.12-0.25MPA Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1pc Water Pump Pressure switches 1/4Inch Water Pump Pressure Control Switches Water wells Pressure Control Switches Adjustable Double Spring Rod Brass Water Pump Pressure Control Switches 1/4Inch Mechanical Water Pump Pressure Switches Easy to Install Automatic Pump Pressure Switches Mechanical Water Pump Pressure Switches Double Springs Pressure Switches Enduring 1/4In Water Pump Pressure Control Switches Water wells Pressure Control Switches 1/4Inch Water Pump Pressure Control Switches Water wells Pressure Control Switches Adjustable Double Spring Rod