The SHURflo pressure pumps are diaphragm pumps resulting of a long development process. The integrated pressure switch reacts to outlet pressure, and interrupts power at the preset shut-off pressure. The pumps deliver reliable performance in high flow where pressure is moderate or low. It is used in a variety of applications where pressure is needed. For added reliability a twist-on strainer can be used on the Extreme Pro-Blaster pump (5901-2212 model) inlet port.