IntelliFlo and IntelliPro variable-speed pumps combine variable drive technology, onboard digital intelligence and permanent magnet motors to reduce pump-related energy costs by up to 90 percent, the company says. IntelliFlo and IntelliPro VS+SVRS are the first swimming pool pumps to feature a built-in Safety Vacuum Release System that detects drain blockage and automatically shuts the pump off. Like other IntelliFlo and IntelliPro pumps, they are certified by ENERGY STAR.