The Low Pressure Switch with 1/4″ Quick Connects is designed to cut power to an attached booster pump/solenoid valve when the supplied water pressure drops below approx 20-30 PSI and is suitable for both 24v and 30v systems. It comes preinstalled with a 1/4″ T fitting and power connectors to enable connection to all Reef Pure RO System 24v and 30v pumps, power adapters and accessories.