Leonard Valve emergency water mixing valve for eye/face wash units with full a 1/2" inlet and 1/2" top outlet. The valve's DURA-trol solid bimetal thermostat directly linked to valve porting to control the intake of hot and cold water and compensate for supply temperature and pressure fluctuations. It features a locking temperature regulator to prevent accidental movement set for 85°F. This mixing valve will close down on failure of cold water supply. Its special internal cold water bypass capable of a minimum of 4 GPM at 30 psi upon failure of hot water supply. It also features an adjustable high temperature limit stop set for 90°F, a rough bronze finish, angle checkstops on inlets, a maximum supply temperature 180°F, and a maximum supply pressure 125 psi.