Maintain precise temperature control with this replacement part for Waterworks 40-32672-36488 1/2" Thermostatic Mixing Cartridge. Featuring a threaded nipple design for a secure fit, it ensures smooth water flow and consistent temperature regulation. Built for durability and easy installation, this cartridge restores optimal performance and reliability to your Waterworks thermostatic shower or mixing valve system. WaterWorks 40-32672-36488 
1/2 Thermostatic Mixing Cartridge with threaded  nipple