TriStar® VS Variable Speed Pumps are the most energy efficient pumps on the market, according to EPA ENERGY STAR® third party testing. They offer energy savings of up to 90% and can pay for themselves faster than larger, more expensive variable speed pumps. With a super efficient, ultra quiet permanent magnet motor and integrated electronic drive, TriStar® VS pumps are the perfect replacement for high performance pumps up to 1.5 full rate HP or 2.0 max rate HP. In addition, their all-in-one controller compatibility makes them easy to integrate with any new or existing automation system. From installation to operation, they’re the industry’s easiest, most efficient upgrades.