Item Type: Water Pump Pressure Switch Material: Zinc Alloy Specification: 1.8~2.6bar (Suitable for 550W) Interface Thread Specification: Double 3/8NPT Inner Wire Product Use: Suitable for Automatic Cold and Hot Water Self Priming Switch Pumps of Major Domestic and Foreign Brands, and for Internal and External Threaded Elbows. (for HY, for Well, for LG pump, for WALRUS, for Hanjin Pump, for Supr^Suny, for SHIMGE, for Leo Pump, for ESE, for Shaoxing Snow, for Shanghai Xinxishang, etc.) Package List 1 x Switch This switch is suitable for automatic cold and hot water selfpriming switch pumps of major domestic and foreign brands, and for internal and external threaded elbow pipes. 1The bottom of the switch is made of zinc alloy, which is different from plastic products. Durable and corrosionresistant. 2This automatic water pump pressure switch can withstand high pressure without water seepage or water leakage, which is very practical. 3Silver material double contact clutch(the contact is 15sided contact is more stable than single point ), to ensure the strength of the switch, stable and reliable. 4This automatic water pressure switch has a long service life, and if you avoid frequent starting ityou can use it for a long time. 5Suitable for automatic cold and hot water self priming switch pumps of major brands, and for internal and external threaded elbow pipes.