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Zurn Industries Backflow Prevention Preventers
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Zurn Industries 1'' 375St Reduced Pressure Principle Backflow Preventer

SKU: 1-375ST

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375 (sm) Collection

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Product Details

Zurn Industries 1-375ST

The 1'' 375ST Reduced Pressure Principle Backflow Assembly offers high hazard protection against both backsiphonage and backpressure of contaminated water into the potable water supply. Materials include engineered plastic construction and quality 300 series stainless steel fasteners, springs, ball valves, and struts. The 375ST is utilized in systems where liquids are corrosive to copper alloys like bronze valves, including medical diagnostic equipment applications, food processing, distilleries, and breweries. It comes standard with full port QT ball valves, and features a maximum working water pressure of 175 psi, maximum working water temperature of 180°F, and hydrostatic test pressure of 350 psi.


The 1'''' 375ST Reduced Pressure Principle Backflow Assembly offers high hazard protection against both backsiphonage and backpressure of contaminated water into the potable water supply. Materials include engineered plastic construction and quality 300 series stainless steel fasteners, springs, ball valves, and struts. The 375ST is utilized in systems where liquids are corrosive to copper alloys like bronze valves, including medical diagnostic equipment applications, food processing, distilleries, and breweries. It comes standard with full port QT ball valves, and features a maximum working water pressure of 175 psi, maximum working water temperature of 180°F, and hydrostatic test pressure of 350 psi.


  • Collection 375 (sm)
  • UPC 612052069999
  • Online Product ID 4053492
  • Product Line 480
  • Length 16.9"
  • Width 9"
  • Height 5"
  • Weight 8.9 lbs.
  • Made In USA
  • Made in USA yes
  • Low Lead Compliant yes
  • Material Stainless Steel,Reinforced Nylon
  • Unit Of Measure Each
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Minimum Order Quantity 1
  • Shipping L:16.9"x W:9"x H:5" 12 lbs.

Additional information

  • All stainless steel and engineered plastic construction resists corrosion
  • Repair Kits provide cost savings by avoiding full Backflow Preventer replacement
  • Applicable for systems that are corrosive to bronze valves
  • Excellent for food service use
  • Low-lead law compliant
  • ASSE® Listed 1013
  • CSA B64.4
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Certified to NSF/ANSI 372* by IAPMO R&T
  • NSF® Listed-Standard 61, Annex G

About This Brand

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