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

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.