Protect your pump while improving your pool safety with the A.O. Smith Guardian Pool Motor. The Guardian Pool Motor is a single-speed, single phase motor that's economical and easy to install. Its tamper resistant housing and ball bearings make the Guardian Pool Motor reliable and efficient. Complying with the Virginia Graeme Baker Pool and Spa Safety Act, the Guardian Pool Motor is built with a Safety Vacuum Release System designed to automatically shut down when blockage or clogging is detected, providing added protection against entrapment. The Guardian Pool Motor is available in 3/4HP to 3HP and are compatible with all flow rates for strength and versatility.