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Zurn Wilkins 34-375S 3/4-inch Reduced Pressure Backflow Preventer with bronze 'Y' strainer, side and top access view.

Zurn Wilkins 34-375S 3/4" Reduced Pressure Backflow Preventer

Brand: Zurn Industries, LLC
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$942.73
$707.05
SKU 34-375S

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The Zurn Wilkins 34-375S 3/4" Reduced Pressure Backflow Preventer is a compact, high-hazard RPZ assembly designed to protect potable water supplies from backpressure and backsiphonage. It combines durable construction with easy serviceability to reduce long-term maintenance costs.

  • EZSwap® pressure vessel: Removable, UV-resistant reinforced nylon vessel for fast off-line servicing and reduced rebuild time.
  • Flush Tool compatible: Flush fitting tool enables quicker line flushing and testing on site.
  • Bronze "Y" type strainer: Integral strainer protects internals from debris and simplifies maintenance.
  • High working pressure: Rated to 175 psi for commercial and irrigation applications.
  • Certifications: ASSE 1013 listed; IAPMO and CSA B64.4 compliant; AWWA C511 alignment and USC Foundation approval for cross-connection control.
  • Sizes and options: Available in sizes 1/2" through 2"; suffix options include S for bronze strainer and other factory options for inlet/outlet, valve types, and test fittings.

Designed for irrigation, commercial, and industrial systems where non-potable cross-connections pose a health risk, the 34-375S balances reliability and serviceability. Refer to the included installation and maintenance documents and specification sheet for dimensions, repair parts, and detailed installation guidance. Regular testing and annual maintenance by a certified technician will ensure continued compliance and performance.

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Frequently Asked Questions

What certifications does the 34-375S have for potable systems?
Listed to ASSE 1013 and certified by IAPMO and CSA; meets AWWA C511 criteria.
How does the EZSwap pressure vessel improve serviceability?
EZSwap is removable for off‑line repairs and uses a flush fitting tool to speed flushing and testing.
Is the 34-375S suitable for irrigation and commercial use?
Yes. Rated to 175 psi, the unit is intended for irrigation, commercial and industrial non‑potable systems.
How often should the 34-375S be tested and maintained?
Follow local codes; annual testing and routine inspection are recommended. Consult the installation manual for service intervals.

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