The Wilkins 720A is designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply. Wilkins 720A pressure vacuum breaker assembly provides protection where a potential health hazard exists. The 720A Wilkins backflow preventer is a solid, time-tested performer. Simple design means fewer parts and lower maintenance costs.
The newly designed 720a strategically positions the test cocks so that it is easier to install in either direction. The new 720a can now be installed as a direct replacement for the 420a . The Wilkins 720A has a built-in relief valve that will allow expanded water to escape the cavity of the valve as water temperature falls, allowing additional time to properly winterize and insulate the Wilkins 720A pressure vacuum breaker. Learn More