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Backflow Preventer,1 1/4 in,FMTC x FNPT Pressure 175 psi, Width 1 3/4 in, Length 4 3/4 in, Features Acceptable for use in Potable Water Systems, Horizontal or Vertical Installation, Low-Lead Law Compliant, Many different Inlet and Outlet Connections available, Standards ASSE 1024, CSA, NSF/ANSI/CAN 61, Compliance ASSE 1024, CSA, NSF/ANSI/CAN 61. Range Up to 180 Degrees F, Max.