Zurn Wilkins 34-375S 3/4" Reduced Pressure Backflow Preventer - 34-375S
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.
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.
Features
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EZSwap pressure vessel: Removable, UV-resistant reinforced nylon vessel for fast off-line servicing and reduced rebuild time.
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Flush Tool compatible: Flush fitting tool enables quicker line flushing and testing on site.
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Bronze "Y" type strainer: Integral strainer protects internals from debris and simplifies maintenance.
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High working pressure: Rated to 175 psi for commercial and irrigation applications.
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Certifications: ASSE 1013 listed; IAPMO and CSA B64.4 compliant; AWWA C511 alignment and USC Foundation approval for cross-connection control.
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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.
What our Experts Think
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Excellent for irrigation and non-potable systems: The Zurn Wilkins 34-375S 3/4" Reduced Pressure Backflow Preventer delivers reliable protection against backsiphonage and backpressure in high-hazard, non-potable water applications.
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Built for faster maintenance: The patented EZSwap® removable pressure vessel allows off-line servicing, helping reduce repair time and simplify seasonal maintenance.
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Integrated bronze Y-strainer: A built-in bronze wye strainer helps protect internal components from debris, extending service life and reducing maintenance costs.
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Designed for demanding environments: Corrosion-resistant materials and a top-access design make this assembly well suited for outdoor installations and harsh water conditions.
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Contractor-preferred performance: With low lifecycle costs, easy winterization, and quick flushing using the compatible Flush Tool, the 34-375S is a popular choice for commercial and residential irrigation professionals.
Q&A
Maintenance Tips
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