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Zurn Wilkins 700XL Dual Check Valve, 3/4 in FNPT Union x 3/4 in FNPT

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Original Price $285.03
Current Price $123.99
SKU 34UFX34F-700XL
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The Zurn Wilkins 700XL Dual Check Valve (Model 34UFX34F-700XL) is a compact, lead-free backflow prevention device designed for low-hazard potable water applications. It protects against backsiphonage and backpressure where a testable assembly is not required.

  • Model & SKU: 700XL series, SKU 34UFX34F-700XL - compact 3/4 in nominal size.
  • Connections: 3/4 in FNPT union inlet x 3/4 in FNPT outlet for straightforward installation and easy servicing without disturbing downstream piping.
  • Construction: Low-lead bronze body with corrosion-resistant stainless steel springs and Delrin seats for long service life in potable water systems.
  • Ratings: 175 PSI maximum working pressure and 180°F (82°C) maximum media temperature; suitable for typical residential, commercial and irrigation lines.
  • Certifications: ASSE and NSF/ANSI compliant and manufactured to meet low-lead requirements for potable water protection.
  • Installation: Can be installed horizontally or vertically; non-testable design intended for low health-hazard applications where a testable assembly is not required.

Technical documentation including specification, installation, and repair guides are available for service technicians. The union inlet simplifies maintenance and replacement of internal cartridges without removing the outlet connection. Choose the 700XL where a compact, serviceable dual check solution is required to protect potable water lines.

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Frequently Asked Questions

What size connections does the 700XL use?
This model uses 3/4 in FNPT union inlet x 3/4 in FNPT outlet for common potable and irrigation lines.
Is the 700XL testable in the field?
No. The 700XL is a non-testable dual check intended for low health-hazard applications.
What are the pressure and temperature limits?
Maximum working pressure is 175 PSI and maximum media temperature is 180°F (82°C).
What materials and certifications does it have?
Low-lead bronze body, stainless steel springs, Delrin seats; meets ASSE and NSF/ANSI potable water standards.

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