Watts 0125123 Repair Kit

The Watts 0125123 Repair Kit is the verified factory replacement for Watts 223 series pressure reducing valves (PRV) sized 1/2" and 3/4", as well as the 1" Watts U5 series. This kit is the direct successor to the legacy 0861470 (861470) series, engineered to restore factory-standard pressure regulation and Prevent internal bypass in high-demand plumbing environments. For a contractor, maintaining water pressure is critical to protecting downstream fixtures. This kit includes all primary internal wear components, including a high-temp resistant diaphragm and heavy-duty disc assembly. Utilizing a Watts PRV rebuild kit allows for a complete internal overhaul without the logistical labor of cutting the valve body out of the line. When handling Watts 1" U5 repair or Watts 223 1/2" - 3/4" maintenance, ensure the valve body is free of debris before installing these OEM replacement parts to ensure a proper seal and consistent psi output.

• Universal Compatibility: Specifically designed to service both the 1" U5 and the 1/2" - 3/4" 223 series PRVs.
• Internal Restoration: Replaces worn seals and diaphragms to eliminate pressure creep and hammer.
• OEM Precision: Direct replacement for the discontinued 0861470 kit with updated material tolerances.
• Contractor Grade: Simplifies on-site service calls by providing all necessary internal components in a single kit.

Common Technical Questions

Will this kit work for the older 861470 model?
Yes, the Watts 0125123 is the official updated version of the 0861470 and is the correct part for those legacy applications.

Can I use this kit for a 1" 223 valve?
No, this kit is specifically sized for 1/2" and 3/4" in the 223 series. It only covers the 1" size within the U5 model range. Always verify the valve body size before rebuilding a pressure reducing valve.

How do I know if the internal disc or diaphragm is failing?
If you observe downstream pressure spikes or leaking from the vent hole in the spring cage, the internal components have likely reached their service limit and require this repair kit.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.