Dual Check Backflow Preventer


Dual check continuous pressure backflow preventer with atmospheric vent.
DZR low-lead brass body.
Max working pressure:  175 psi
Working temp range:  32˚ - 210˚F
Emergency backpressure temp: 250˚F 

Compliance with the following codes:  IPC, IRC and UPC for use in accordance with the U.S. and Canadian plumbing codes

Compliance with the following standards:  
      ASSE 1012-2009
      NSF/ANSI 372 - 2016, Drinking Water System Components - Lead Content
      Reduction of Lead in Drinking Water Act, California Health and
                  Safety Code 116875
       S.3874, Reduction of Lead in Drinking Water Act

ICC-ES Report


  • ASSE1012


code description weight
573403A ½" NPT female inlet/outlet 1.7
573406A ½" press unions 1.7
573409A ½" sweat unions 1.7
573493A ½" sweat unioninlet x ½" F NPT union outlet 1.7
573503A ¾" NPT female unions 1.7
573100A Replacement body w/washers 1.5


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