Features 1、CORROSION RESISTANT MATERIAL: The bottom of the switch is zinc alloy material, low quality products with cheap market price are plastic material, zinc alloy material is durable, corrosion resistant, high pressure resistant, no seepage or leakage, etc. 2、STABLE CONTACT: Double contact clutch is made of silver material, the contact is plane contact, more stable than single circular contact 3、STABLE AND DURABLE: Ensure the strength of the switch, possess stable and reliable quality, long service life, avoid frequent start 4、PRESSURE CONTROL: The pump pressure can be adjusted through the pump pressure switch, you can set the self adaptive pressure according to the work demand 5、WIDE APPLICATION: Suitable for self priming pump, jet pump, garden pump, clean water pump, etc., to achieve unmanned control Specification Item Type: Pump Pressure Switch Material: ABS and zinc alloy Maximum Current: 16A Pressure Range: 2.2kg/cm²-3.0kg/cm² 3/8 Female Thread Diameter: Approx. 15mm / 0.59in Application: Self priming pump, jet pump, garden pump, clean water pump, etc. Features: According to the change of pipeline pressure automatically open and close the pump, to achieve unmanned control Package List 1 x Pump Pressure Switch