Standard 2" Backflow Preventer Male Threads_NPSH Please contact your local fire

Please contact your local fire department

years of trouble free use and adequate reinforcement

Approx hole size 1" x 1/4"

Specifications Underwriters Listed (UL) approved Factory Mutual (FM) approved

The outside diameter of a 1

Standard 2" Backflow Preventer Male Threads_NPSH Please contact your local fireDesigned 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