Zurn Industries Backflow Prevention Preventers
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Zurn Industries 4'' 375 Reduced Pressure Principle Backflow Preventer

SKU: 4-375

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  • Product Type Preventer
  • Length 40.8"  Width 21.5"  Height 32.5"  Weight 317 lbs. 
  • View Complete Specs

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375 (lg) Collection

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Product Details

Zurn Industries 4-375

The 4'' 375 Reduced Pressure Principle Backflow Assembly, with flanged end NRS gate valves, is utilized where a potential high health hazard exists and is ideal for use when lead-free valves are required protecting against both back siphonage and backpressure of contaminated water into the potable water supply. The 375 includes an epoxy-coated inside and out ductile iron valve body eliminating exposure to corrosion. The 375 utilizes the Zurn Wilkins low headloss Compound Check and offers the lowest lifecycle costs on the market.


The 4'''' 375 Reduced Pressure Principle Backflow Assembly, with flanged end NRS gate valves, 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. The 375 includes an epoxy-coated inside and out ductile iron valve body eliminating exposure to corrosion. The 375 utilizes the Zurn Wilkins low headloss Compound Check and offers the lowest lifecycle costs on the market.


  • Collection 375 (lg)
  • UPC 612052044453
  • Online Product ID 2972222
  • Product Line 480
  • Length 40.8"
  • Width 21.5"
  • Height 32.5"
  • Weight 317 lbs.
  • Made In USA
  • Made in USA yes
  • Low Lead Compliant yes
  • Material Ductile Iron
  • Unit Of Measure Each
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Minimum Order Quantity 1
  • Shipping L:41"x W:21"x H:33" 330 lbs.

Additional information

  • FM® Approved
  • UL® Classified
  • Complete epoxy coating inside and outside of valve body eliminating exposure to corrosion
  • Utilizes Zurn Wilkins low headloss compound check for reliable and superior performance
  • Low-lead law compliant
  • ASSE® Listed 1013
  • AWWA Compliant C511 and C550
  • IAPMO® Listed
  • CSA® Certified B64.4 (2 1/2" thru 8")
  • AWWA Compliant C511, and C550

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