Feature:1. The bottom of the switch is made of zinc alloy. The cheap and lowquality products on the market are made of plastic. The zinc alloy material is durable, corrosionresistant, withstands high pressure and does not seepage2. The use of silver material doublecontact clutch, (the contact is 15sided contact is more stable than singlepoint contact)3. To ensure the strength of the switch, the quality is stable and reliable, and to ensure a long service life, frequent starting should be avoided4. When the pressure in the pipeline is released to the low pressure of the switch, the connection will be reconnected, and the pressure will be disconnected when the pressure reaches a high point5. The switch is suitable for automatic cold and hot water self-priming booster pumps of major domestic and foreign brands, for internal and external threaded elbowsSpecification:Item Type: Water Pump Pressure Switch ControllerSpecification: 1.0~1.8bar (Suitable for 125W)Interface Thread Specification: Double 3/8NPT Female ThreadProduct Use: This Switch is Suitable for Automatic Cold and Hot Water Self-Priming Booster Pumps of Major Domestic and Foreign Brands, and for Insert Nut Threaded Elbows.(for Korea Hanyi, for Germany Wilo, for South Korea LG Pump, for Taiwan Wallace, for Taizhou Hanjin, for Liaoning Haicheng Sanyu, for Zhejiang New Territories, for Leo Pump, for Fujian Yinxiang, for Shaoxing Snow, for Shanghai Xinxishan, Etc.).Package List:1 x Switch