Features Zinc Alloy Material: The bottom of the switch is constructed with and corrosion-resistant zinc alloy, ensuring longevity and withstanding high pressure, unlike cheaper plastic alternatives. Stable Silver Material Double- Clutch: Utilizes a silver material double- clutch with 15-sided for enhanced stability, ensuring reliable performance. Long Service Life: Engineered for strength and stability to avoid frequent starting, ensuring a long service life for the switch. Pressure Control: Automatically reconnects the connection when the pressure drops to a low level and disconnects at a high pressure, ensuring pressure control in the pine. Wide Compatibility: Compatible with automatic cold and hot water self-priming bo pumps of major domestic and foreign brands, suitable for internal and external threaded elbows. Features: 1、The bottom of the switch is made of zinc alloy. The cheap and low？quality products on the market are made of plastic. The zinc alloy material is , corrosion？resistant, withstands high pressure and does not seepage 2、The use of silver material double？ clutch, (the is 15？sided is more stable than single？point ) 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 avoided 4、When the pressure in the pine 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 point 5、The switch is suitable for automatic cold and hot water self-priming bo pumps of major domestic and foreign brands, for internal and external threaded elbows Specification: Item Type: Water Pump Pressure Switch Controller Specification: 1.0~1.8bar (Suitable for 125W) Interface Thread Specification: Double 3/8NPT Female Thread Product Use: This Switch is Suitable for Automatic Cold and Hot Water Self-Priming Bo 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 Package List 1 x Switch