Backflow Devices Photographs of Backflow Devices These illustrations may assist you in installing your backflow device.

Index of Backflow Device Photographs

3/4" or 1" Hersey FDC Double Check Valve Backflow Device

3/4" or 1" Watts 709 Double Check Backflow Device

3/4" Watts 007 Double Check Backflow Device

3/4" Watts 009 Reduced Pressure Principle Backflow Device

3/4" or 1" Hersey FRPII Reduced Pressure Principle Backflow Device

1" Watts 009 Reduced Pressure Principle Backflow Device

1" Watts 007 Double Check Valve Backflow Device

3/4" or 1" Watts 009 Reduced Pressure Principle Backflow Device (with 3/4 " domestic Tee Assembly) (normally used)

          3/4" or 1" Watts 009 Reduced Pressure Principle Backflow Device (with 3/4" Watts 007 Domestic Tee Assembly on Riser) (rarely used)

1½" or 2" Watts 909 Reduced Pressure Principle Backflow Device

1½" or 2" Watts 009 Reduced Pressure Principle Backflow Device

1½" or 2" Watts 007 Double Check Backflow Device

1½" or 2" Watts 009 Reduced Pressure Principle Device (with 34" domestic tee assembly) (normally used)

          1½" or 2" Watts 009 Reduced Pressure Principle Backflow Device (with 3/4" domestic tee assembly on riser) (rarely used)

3" Watts 909 Reduced Pressure Principle Backflow Device

3" Watts 909 Reduced Pressure Principle Backflow Device (with 3/4" domestic tee assembly)

3" Watts 709 Double Check Backflow Device

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