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Wilkins RK34-375BOF blow-out flush fitting kit with two O-rings, 3/4-inch backflow service component, close-up on housing and seals

Wilkins RK34-375BOF 3/4" Blow-Out Flush Kit

Brand: Zurn Industries, LLC
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$49.89
$37.41
SKU RK34-375BOF
In Stock (3)

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Designed for professional service and reliable winterization, the Wilkins RK34-375BOF blow-out/flush kit fits 3/4" Reduced Pressure (RP) assemblies and select 350/375 series models. This OEM repair kit makes flushing debris and removing water from the line quick and dependable, reducing the risk of check fouling and simplifying seasonal maintenance.

  • OEM compatibility: Genuine Wilkins/Zurn replacement fitting engineered for 3/4" 375 and 375XL assemblies (also compatible with select 350 series models).
  • Complete kit: Includes the blow-out/flush housing and two durable O-rings for a proper seal and immediate installation.
  • Winterization & servicing: Enables efficient line blow-out to remove water for freeze protection and helps flush new or contaminated lines.
  • Simple field installation: Compact design installs in the cartridge housing with no special tools required; designed for service technicians and maintenance crews.
  • Durable construction: Manufactured to meet industry service demands and built for repeated maintenance cycles.

Use this kit as part of routine backflow maintenance to extend the life of your assembly and reduce downtime. For model compatibility, installation guidance, and safety information, consult the Wilkins/Zurn product documentation or the device service manual prior to servicing.

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Frequently Asked Questions

What models is the RK34-375BOF compatible with?
The RK34-375BOF fits Wilkins/Zurn 375 and 375XL 3/4" assemblies and is compatible with select 350 series models.
How many parts are included in the kit?
The kit contains the blow-out/flush housing and two O-rings, ready for immediate installation during service.
Can I use this kit for winterization and flushing?
Yes. The fitting is designed to help blow out lines for freeze protection and to flush debris from new or contaminated lines.

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