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Wilkins RK1-375V 1" complete vessel repair kit showing replacement vessel assembly and rubber parts on a white background

Wilkins RK1-375V 1 in. Complete Vessel Repair Kit

Brand: Zurn Industries, LLC
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$626.76
$272.64
SKU RK1-375V
In Stock (5)

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The Wilkins RK1-375V 1 in. Complete Vessel Repair Kit restores sealing and reliable performance for 1" Model 375 and 375XL reduced-pressure backflow assemblies. This factory-authorized kit replaces the vessel and all essential rubber components so technicians can repair the assembly without replacing the entire valve.

  • Compatibility: Designed for Wilkins/Zurn 1" Model 375, 375XL, and 375ST reduced-pressure (RPZ) backflow assemblies.
  • Complete component set: Includes both #1 and #2 check modules, full relief valve components, housing O-rings, test cocks, seal retainers, screws, and necessary seals.
  • Materials & compliance: Lead-free wetted materials and quality rubber components meet ASSE 1013 listing and C-UL classification for potable water protection.
  • Performance: Restores valve sealing and spring tension to factory specifications to prevent backsiphonage and backpressure contamination.
  • Serviceable design: Modular check and relief assemblies speed repairs and lower maintenance costs compared with full valve replacement.
  • Warranty & support: Backed by a 1-year limited warranty and Zurn/Wilkins technical resources and installation documentation.

This kit is intended for professional maintenance and must be installed and tested by a qualified plumber or certified backflow technician to ensure local code compliance and correct operation. For parts diagrams, installation instructions, and warranty details, refer to the manufacturer documentation supplied with the kit or visit the Zurn/Wilkins technical resources.

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Frequently Asked Questions

What models is the RK1-375V compatible with?
Compatible with Wilkins/Zurn 1" Model 375, 375XL, and 375ST reduced-pressure assemblies.
What parts are included in this repair kit?
Includes both check modules, a complete relief valve assembly, O-rings, test cocks, screws, and lubricant for full vessel repair.
Can I install the kit myself or should I hire a professional?
A qualified plumber or certified backflow tester should install and test the kit to meet local codes and ensure proper operation.

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