The silicone rubber sealing float O-ring and seal check disc are resistant to heat, shock, and chemical attack to ensure reliable performance
The acetal bonnet acts as “freeze plug" to prevent body damage
The test cocks are positioned for easy testing and winterization
Internal parts are easy to access and service with no special tools required
Equipped with female NPT inlet and outlet with quarter turn shutoffs
The Watts Series 800M4QT 1" Anti-Siphon Pressure Vacuum Breakers prevent the back flow of contaminated water from entering into the potable water supply due to back siphonage.