Haywards TriStar VS 1.85 HP Variable-Speed Pool Pump belongs to the most energy-efficient family of pumps among leading brands, according to EPA ENERGY STAR third-party testing. It offers energy savings of up to 90%, or $1500 per year, with a super-efficient, ultra-quiet permanent magnet totally enclosed fan-cooled motor and integrated electronic drive. In addition, its all-in-one controller compatibility makes it easy to integrate with any new or existing automation system. From installation to operation, its one of the industrys easiest, most efficient pump upgrades