Designed for all applications where the temperature of generated hot water must be controlled for safe, economic use. A powerful advanced thermal actuator quickly senses and compensates for temperature fluctuations induced by water temperature and pressure changes in the supply line. Rugged construction features cast brass body and corrosion resistant internal components for years of dependable, troublefree service. Hex socket makes temperature adjustment quick and easy. For restricted access control, the Series e420 valve can be housed in a stainless-steel or white baked enamel steel cabinet and can be packaged with solenoid valve(s) (for ESP II electronic faucets), checkstops or other accessories common to Powers' cabinet supply offering.