3/4 In Lead Free Double Check, Valve Assembly, Quarter Turn Ball Valve

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This 3/4 inch lead free double check valve assembly is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazard applications and from other contaminants found at the service line entrance. This compact design with separate access top entry for easy maintenance is approved with the arrow on the valve pointing in the direction of flow for horizontal and vertical installations. This assembly consists of a bronze alloy body, quarter-turn ball valves with tee handles, NPT end connections, screw driver slotted test cocks, two replaceable positive seating check valves, and seat discs with reversible rubber.

Product Features:

  • Reversible seat disc rubber, extends the check valve life
  • Chloramine resistant elastomers
  • Top mounted screwdriver slotted ball valve test cocks
  • Lead free construction


  • Backflow Preventer Type: Double Check Valve Assembly
  • Body Finish: Bronze
  • Body Material: Lead Free Bronze
  • Body Pattern: Inline
  • BrandName: Watts
  • Bypass: No
  • Cap And Tether: No
  • Disc Material: Silicone
  • Elbow Fitting: No
  • Hazard Protection Level: Non Health Hazard
  • Hot And Harsh Water: No
  • Hydrant Connection: No
  • Inlet Connection Size: 3/4 IN
  • Inlet Connection Type: Female Threaded
  • Inlet Shutoff Valve Type: No Shutoff Valve
  • Inlet Thread Type: FPT
  • LeadFree: YES
  • Maximum Temperature-Fahrenheit: 180
  • Maximum Working Pressure-BAR: 12.10
  • Maximum Working Pressure-PSI: 175
  • Meter Type: No Meter
  • Minimum Temperature-Fahrenheit: 33
  • ModelNumber: LF719-QT 3/4
  • Outlet Connection Size: 3/4 IN
  • Outlet Connection Type: Female Threaded
  • Outlet Shutoff Valve Type: Quarter Turn Ball Valve
  • Outlet Thread Type: FPT
  • Part Number: 0065302
  • Polymer Coating: No
  • Pressure Operation: Continuous
  • Protection Type: Backpressure and Backsiphonage
  • Seat Material: Engineered Plastic
  • Series: LF719
  • Strainer: No