This replacement cartridge kit provides a practical path to restore a single-handle shower faucet that uses a pressure balance and temperature control system. The cartridge features a brass core for durability and a lower risk of leaks over time, supporting reliable performance in daily use. The kit includes a cartridge puller tool to remove the old cartridge with minimal risk to plumbing, along with lubricating grease to ease installation and help the new cartridge seat smoothly. Additional components such as a metal adapter, a temperature limit stop, and a retainer clip are included to support a complete refresh of the valve assembly. Designed for residential and light commercial applications, it supports posi temp style single-handle faucets where the handle rotates to adjust temperature and flow. The assembly is intended to be a direct replacement in compatible systems, enabling straightforward repairs without extensive plumbing work. By restoring the core valve with quality materials and properly seated seals, the replacement helps maintain steady water pressure and temperature, reducing the chance of spurts or sudden changes during showers. This approach prioritizes restoring function while preserving the existing plumbing layout. It is compatible with standard valve bodies and can be completed with common tools. Color: White.