Ensure your shower maintains perfect water temperature with this replacement part for Lefroy Brooks LB-1750 Thermostatic Cartridge. Built for precision and reliability, it delivers smooth temperature regulation and consistent water flow. Designed for a secure fit and long-lasting performance, this cartridge is ideal for restoring optimal function to your Lefroy Brooks thermostatic shower system.. For Lefroy Brooks LB-1750 Thermostatic Cartridge