Features Zinc Alloy Base: The switch's zinc alloy base ensures long-lasting performance and corrosion resistance, providing reliable protection for your water pressure pump system. High Pressure Resistance: Withstanding high pressure, this controller prevents water seepage and leakage, ensuring consistent and efficient water for your household needs. Silver Material Double Clutch: The 15-sided point of the silver material double clutch offers enhanced stability and durability, ensuring a reliable and long-lasting performance. Strength and Reliability: The double clutch guarantees the switch's strength and stability, providing a dependable performance for your water pressure bo pump system. Wide Compatibility: Compatible with automatic cold and hot water self-priming bo pumps from major domestic and foreign brands, ensuring versatile functionality for various pump systems. Features: 1、The bottom of the switch is made of zinc alloy, which is and corrosion？resistant. 2、This water pump pressure switch controller can withstand high pressure without water seepage, water leakage and other problems. 3、It adopts silver material double clutch, ( the is 15 sided point is more stable than single point ). 4、The double clutch can ensure the strength of the switch, and the quality is more stable and reliable. 5、This switch is suitable for automatic cold and hot water self？priming bo pumps of major domestic and foreign brands. Specification: Item Type: Water Pump Pressure Switch Material: Zinc Alloy Specification: 1.5~2.2kg ( Suitable for 250W 300W 370W ) Interface Thread Specification: 3 / 8in Product Use: Automatic Cold and Hot Water Self Priming Bo Pumps of Major Domestic and Foreign Brands, for Internal and External Threaded Elbows. Package List: 1 x Water Pump Pressure Switch Note: Automatic cold and hot water self priming bo pumps of major domestic and foreign brands, for internal and external threaded elbows. Package List 1 x Water Pump Pressure Switch