AllPoints 561149 Watts Model 9d Backflow Preventer 1/2″ Fpt Union., Dual Check Backflow Preventer With Atmospheric Vent For, Continous Pressure., Max Temp 250f Max Pressure 175 Psi., , This Product Contains More Than 0.25% Lead. It Is Illegal, To Use This Product In Potable Services Such As Drinking, Water Handwashing Food Preparation Or Dishwashing.