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Reduced Pressure Principle Backflow Preventer 4-375

Reduced Pressure Principle Backflow Preventer 4-375 is utilized where a potential high health hazard exists and is ideal for use when lead-free valves are required protecting against both backsiphonage and backpressure of contaminated water into the potable water supply.

This pressure vacuum breaker includes an epoxy-coated inside and out ductile iron valve body eliminating exposure to corrosion and utilizes the Zurn Wilkins low headloss Compound Check and offers the lowest lifecycle costs on the market.

To view all options, see the Specification Sheet - Model 375

UPC: 612052044453

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Features And Benefits

  • 4" reduced pressure principle assembly
  • Short lay-length for small space installation
  • Ideal for any backflow replacement
  • Utilizes Zurn Wilkins low headloss Compound Check for reliable and superior performance
  • No threads or taps in body or cover, eliminating exposure to corrosion
  • Single access cover reduces downtime
  • NRS (standard), OS&Y, or Butterfly shut-off valves available
  • Available in flanged, grooved, or grooved x flanged end connections for installation versatility
Proportion 65
Lead Free
Retrofit or Replacement
MasterSPEC
Zurn Wilkins
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Repair Parts

Check #1 Seat Retainer Repair Kit for 2-1/2" - 4" 350/375/450/475

Check #2 Seat Retainer Repair Kit for 2-1/2" - 4" Models 350/375/450/475

Second Check Assembly Repair Kit for 2-1/2", 3" and 4" 375A/350ADA and 4" 375/350/475/450

First Check Assembly Repair Kit for 2-1/2" and 3" 375A/375ADA and 4" 375/375DA/475/475DA

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