Standard 2" Backflow Preventer Storz Size_2 1/2" Rigid Storz supply hose and adapter sold

supply hose and adapter sold separately

3 inches across

Do not use in connection with drinking water

Sides are open to allow hose to dry faster

Standard 2" Backflow Preventer Storz Size_2 1/2" Rigid Storz supply hose and adapter soldDesigned to give maximum protection against backflow caused by back pressure or back siphonage from a cross connection wherein a contaminant hazard exists (i. e. a health hazard), or a pollutant hazard exists (i. e. a non hazard). Consists of two spring loaded poppet type valves and a mechanically independent, hydraulically dependent pressure differential relief valve. Three top mounted test cocks ensure easy access during repair and maintenance when