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WATTS LF919-QT 1 - 1" - Reduced Pressure Zone Assembly RP - (0065373) - LF919-QT 1


Shipping Size: 17X11X8in


Lead Free: YES

1 In Lead Free Reduced Pressure Zone Assembly, Quarter Turn Ball Valves


This 1 inch lead free reduced pressure zone assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with separate access covers for in-line repairs. It can be used in a variety of installations without the need of any special tools.


It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards and from other contaminants found at the service line entrance. This assembly consists of a bronze body construction, NPT end connections, quarter turn ball valve shutoffs with tee handles, two poppet style check valves and replaceable check seats, top mounted test cocks and a bottom mounted relief valve for reduced space requirements.



  • Quarter turn full port resilient seated ball valve shutoffs with tee handles
  • No special tools are required for servicing
  • Separate access covers for the check valves and relief valve for ease of maintenance
  • Innovative check valve plastic cover bushing provides trouble free guiding of the check valve poppet
  • Compact, space saving design
  • Bottom mounted relief valve for reduced clearance installation
  • Lead free bronze body with NPT end connections
  • EZ twist relief valve cover with quarter turn locking joint captures the spring load during repair to facilitate disassembly
  • Top mounted screw driver slotted test cocks for easy testing and use in reduced clearance installation


Backflow Preventer Type Reduced Pressure Zone Assembly
Body Finish Cast Bronze
Body Material Lead Free Bronze
Body Pattern Inline
Brand Name Watts
Buy American Act Compliant YES
Bypass No
Bypass Size Does Not Apply To Product
Cap And Tether No
Disc Material Silicone
EAN 098268238556
Elbow Fitting No
Hazard Protection Level Health Hazard
Hot And Harsh Water No
Hydrant Connection No
Inlet Connection Size 1 IN
Inlet Connection Size-Metric 25 MM
Inlet Connection Type Female Threaded
Inlet Shutoff Valve Type Quarter Turn Ball Valve
Inlet Thread Type NPT
Lead Free YES
Maximum Temperature-Fahrenheit 180
Maximum Working Pressure-BAR 12.10
Maximum Working Pressure-PSI 175
Meter Type No Meter
Minimum Temperature - Celsius 0.50
Minimum Temperature-Fahrenheit 33
Outlet Connection Size 1 IN
Outlet Connection Type Female Threaded
Outlet Shutoff Valve Type Quarter Turn Ball Valve
Outlet Thread Type NPT
Part Number 0065373
Polymer Coating No
Pressure Operation Continuous
Protection Type Backpressure and Backsiphonage
Seat Material Engineered Plastic
Series LF919
Strainer No
Tradename None
Type Kit



WATTS LF919-QT1 - 1" - Reduced Pressure Zone Assembly RP - (0065373)

SKU: 0065373