Watts 888168 3/4 Inch Rpz Total Repair Kit

Product Description

The WATTS 888168 is a total repair kit designed for 3/4-inch 919-series reduced pressure zone (RPZ) backflow preventer assemblies. This kit supplies all the genuine OEM internal components needed to fully rebuild the valve in a single service call. It includes a first check repair kit, a second check repair kit, and a relief valve repair kit. Plumbers and backflow prevention specialists use this kit to restore a 919-series RPZ assembly to factory condition without sourcing individual components separately. All parts are original manufacturer components, ensuring proper fit and function.

This kit is suited for commercial and residential plumbing systems where an RPZ backflow preventer is installed to protect potable water supplies from contamination. It is the appropriate service solution when a full internal rebuild of the 3/4-inch 919-series assembly is required, such as during annual backflow testing failures or scheduled preventive maintenance. The kit addresses all three internal subassemblies in one package.

Key Features

• Includes first check, second check, and relief valve repair kits in one package
• Genuine OEM components for proper fit in 919-series 3/4-inch RPZ assemblies
• Designed for full internal rebuild in a single service visit
• Supports compliance with annual backflow preventer testing and certification requirements
• Replacement part classification — intended for service and maintenance applications

Compatibility

Designed as an OEM-style total repair kit for the WATTS 919-series 3/4-inch reduced pressure zone backflow preventer assembly.

Installation Notes

Installation should be performed by a licensed plumber or certified backflow prevention tester in accordance with local plumbing codes and IPC requirements. Shut off the water supply and relieve system pressure before disassembling the RPZ assembly. Follow the valve manufacturer's service instructions for proper sequencing of check and relief valve component installation. After rebuilding, the assembly should be tested and certified by a qualified backflow tester before returning the system to service.

Technical Specifications

• Size: 3/4 inches
• Product Type: Total Repair Kit
• Application: Replacement Part
• Compatible Assembly: 919-series RPZ Backflow Preventer

Standard Information

• Brand: WATTS
• Manufacturer Part Number: 888168