Water pump pressure control switch with adjustable spring rod, self-priming water injection

This is a pressure switch for water pumps, allowing for precise pressure control. This pressure switch allows you to precisely adjust the pump pressure according to your needs. Made with high-quality materials, it is robust and durable. A silver shock-absorbing layer prevents overheating, even under high current. A high-strength spring ensures stable pressure. An imported rubber diaphragm ensures a long service life and prevents leaks. Easy to install and durable. Compatible with most water pumps, such as self-priming pumps, jet pumps, garden pumps, etc.