Item Type: Water Pump Switch Specification: 1.8 - 2.6 kg(suitable for 550W) Interface Thread Specification: 3/8in Product Use: This switch is suitable for automatic cold and hot water self-priming booster pumps of major domestic and foreign brands, and for internal and external threaded elbows. Package List 1 x Water Pump Switch 1Made of highquality material zinc alloy, sturdy and durable, have a long service time. 2With excellent production technology, have the function of anticorrosion and preventing water seepage, water leakage by resisting high pressure. 3The use of silver material doublecontact clutch, to ensure the strength of the switch, and the quality is stable and reliable (the contact is 15sided contact is more stable than singlepoint contact), 4Can avoid frequent startup, have humanized design, simple operation, easy to install, convenient to use and operate. 5Small in size and light in weight, convenient to carry and use at any time, very convenient and practical.