Safety Pressure Switch, Aquasol, 1-6 psi

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The Safety Pressure Switch M011 is designed to activate the attached 120v pigtail only in the presence of pressure. It is commonly used in swimming pool chemical injection applicat ions to allow chemical injection pumps or chemical controllers to activate only when there is water pressure at the point of chemical injection. It is designed to deactivate power when there is no flow in the return line. Show more