Backflow Prevention


Watts backflow preventer valves are plumbing devices that stops the reverse flow of contaminated/polluted water, at service entrance or individual outlets, from entering your drinking water supply. The Watts Dual check valve back flow prevention is lead-free and has a copper poppet-type body, which minimizes water pressure, drops while allowing for continuous smooth water flow. Installation is made easy with its strait inline design that allows for either horizontal or vertical positioning.


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Watts Reduced Pressure Zone Backflow Preventer 1" Lead Free Bronze RPZ (LF009M2QT)Watts Reduced Pressure Zone Backflow Preventer 1
Part Number: RPZ-0391004
Alternate Part Number: 1 009M2-QT, 1 LF009M2-QT, 063020, LF009M2QT
  • Temperature Range: 33˚F – 180˚F
  • Maximum Working Pressure: 175psi 
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    $239.95 

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    Mur-Lok® J0822826 Polypropylene Check Valve 1/2"Watts LF7RU2-2 Check Valve Inline 1/2 Union FPT x 1/2 FPT
    Part Number: J0822826
    • Can be installed vertically or horizontally
    • Available with combination of inlet/outlet sizes, types or thread and end connection
    • Temperature Range: 33˚F – 180˚F
    • Minimum Working Pressure: 10psi (69 kPa)
    • Maximum Working Pressure: 175psi (12.07 bar)
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      $14.88 - $1,324.00

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      Watts LF7RU2-2 Lead Free Dual Check Valve 1 Union FNPT x 1 FNPTDual Check Valve LF Brass LF7R 1 Union FNPT x 1 FNPT
      Part Number: DCV-0072205
      Alternate Part Number: 0072205
      Backflow Prevention #: Zurn-Wilkins Dual Check Valve 1UFX1F-700XL
      • Can be installed vertically or horizontally
      • Available with combination of inlet/outlet sizes, types or thread and end connection
      • Temperature Range: 33˚F – 180˚F
      • Minimum Working Pressure: 10psi (69 kPa)
      • Maximum Working Pressure: 175psi (12.07 bar)
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        $37.99 

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        Watts LF7RU2-2 Lead Free Dual Check Valve 1/2 Union FPT x 1/2 FPTWatts LF7RU2-2 Lead Free Dual Check Valve 1/2 Union FPT x 1/2 FPT
        Part Number: DCV-0072203
        Alternate Part Number: 0072203
        Backflow Prevention #: Zurn-Wilkins Dual Check Valve 34UFX34F-700XL
        • Can be installed vertically or horizontally
        • Available with combination of inlet/outlet sizes, types or thread and end connection
        • Temperature Range: 33˚F – 180˚F
        • Minimum Working Pressure: 10psi (69 kPa)
        • Maximum Working Pressure: 175psi (12.07 bar)
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          $33.00 

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          Watts LF7RU2-2 Lead Free Dual Check Valve 3/4 Union FNPT x 3/4 FNPTDual Check Valve LF Brass LF7R 3/4 Union FNPT x 3/4 FNPT
          Part Number: DCV-0072204
          Alternate Part Number: 0072204
          • Can be installed vertically or horizontally
          • Available with combination of inlet/outlet sizes, types or thread and end connection
          • Temperature Range: 33˚F – 180˚F
          • Minimum Working Pressure: 10psi (69 kPa)
          • Maximum Working Pressure: 175psi (12.07 bar)
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            $33.49 

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            Watts SD3-FN 3/8 Lead Free Dual Check ValveWatts SD3-FN 3/8 Lead Free Dual Check Valve
            Part Number: SD3-FN 3/8
            Alternate Part Number: 61673
            • Certified to ANSI/NSF Standard 18
            • ASSE 1022 Approved 
            • Rubber compounds comply with FDA regulations
            • The Minimizes pressure loss and cavitation
            • Endurance: 500,000 (+) pumping cycle
            • Wye pattern strainer for water supply installations
            • Atmospheric port provides visual indication of failure of the second check

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              $107.94 

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              Chrome Plated Vacuum Breaker with Hose Connection 3/4" Lead Free Series 8CChrome Plated Vacuum Breaker with Hose Connection 3/4
              Part Number: VB-0792087
              Alternate Part Number: 0792087
              • 3/4" Chrome plated lead free vacuum breaker
              • Made for outdoor and indoor use
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                MSRP: $33.90
                $32.99 

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                Lead Free Vacuum Breaker with Hose Connection 3/4" Series 8Lead Free Vacuum Breaker with Hose Connection 3/4
                Part Number: VB-0792085
                Alternate Part Number: 0792085
                • Series 8 3/4" lead free vacuum breaker
                • Made for outdoor and indoor use
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                  $22.99 

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                  Lead Free Vacuum Breaker with Hose Connection 3/4" Series 8BLead Free Vacuum Breaker with Hose Connection 3/4
                  Part Number: VB-0792086
                  Alternate Part Number: 0792086
                  • 3/4" lead free brass vacuum breaker
                  • Made for outdoor and indoor use
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                    $11.99 

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                    Watts Backflow Prevention Valve Install Diagram


                    Common Installation diagram of Watts Backflow Prevention Dual No Lead Check Valve