Description
Zurn Wilkins RK212-350CK1 DCVA Backflow Preventer First Check Assembly Repair Kit – 2-1/2″ & 3″.
Product Overview
The Zurn Wilkins RK212-350CK1 is a genuine OEM first check assembly repair kit designed for 2-1/2″ and 3″ Zurn Wilkins backflow preventers. Built specifically for the 350, 350DA, 450, and 450DA series, this kit contains all the essential components needed to restore the #1 check section, ensuring reliable backflow prevention and continued code compliance.
Using the RK212-350CK1 helps extend the service life of your backflow preventer, saving on costly replacements while maintaining dependable protection against backsiphonage and backpressure in potable and non-potable applications.
Features & Benefits
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OEM Certified – Genuine Zurn Wilkins replacement parts for guaranteed fit and performance.
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Complete Repair Solution – Includes all necessary components for rebuilding the first check assembly.
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Compatibility – Designed for 2-1/2″ and 3″ Zurn Wilkins models 350, 350DA, 450, and 450DA.
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Long-Lasting Materials – Corrosion-resistant elastomers and hardware ensure extended service life.
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Maintains Compliance – Keeps your backflow preventer performing to required standards for inspections.
Kit Contents
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Seat Retainer #1
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O-Ring – Seat
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Nut – Poppet Retainer
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Washer – #1 Check
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O-Ring – Stem
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Poppet Retainer
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Seal Ring
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Seat Assembly – #1 Poppet (3507-300)
Compatibility
This repair kit is designed for the following backflow preventers:
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212-350, 212-350DA
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3-350, 3-350DA
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212-450, 212-450DA
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3-450, 3-450DA
Important Note:
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Does not repair “A” style bodies (e.g., 212-350A).
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Does not repair “AST” style bodies (e.g., 212-350AST).
Installation Tips
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Shut off water supply and relieve system pressure before beginning.
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Follow Zurn Wilkins repair instructions for proper assembly sequence.
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Apply approved lubricant to O-rings during installation.
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Always test the backflow preventer after servicing to ensure correct operation.
FAQs
Q: What does this kit repair?
The RK212-350CK1 rebuilds the #1 check section of Zurn Wilkins 2-1/2″ and 3″ 350, 350DA, 450, and 450DA backflow preventers.
Q: Can this be used on “A” or “AST” style models?
No. This kit is not compatible with “A” or “AST” body style preventers.
Q: How often should the check assembly be serviced?
Annual inspection is recommended. Service may be required sooner if the unit fails a backflow test.
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