[AUTOMATIC CONTROL] Designed to start and stop the pump automatically as pipeline pressure changes helping create convenient unmanned control for self priming pumps jet pumps and water systems. [110V TO 230V] Built for rated voltage from 110V to 230V making this pressure control switch kit suitable for compatible household and light duty pump setups that need stable pressure response. [3 PIECE KIT] Includes 1 pressure control switch 1 stainless steel pressure tank and 1 copper check valve giving you practical replacement parts in one set for repair maintenance or system refresh. [WIDE APPLICATION] Ideal for self priming pumps jet pumps garden pumps and clear water pumps and useful for homeowners installers and maintenance users needing dependable water pressure control. [DURABLE MATERIALS] Made with ABS stainless steel and copper this pump pressure control switch kit offers wear construction and can also help check water leakage within the system.