Standard 2" Backflow Preventer Storz Size_2 1/2" Rigid Storz Once at your point of

Once at your point of attack

Female 1 1/2 NPSH

Do not use in connection with drinking water

Female 2 inch NPSH

3 inches across

Standard 2" Backflow Preventer Storz Size_2 1/2" Rigid Storz Once at your point ofDesigned 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