Thermostatic Mixer, Simple operation, Easy to use, Saving water and energy. Avoid water temperature the peaks and valleys. In mixing water outlet of thermostatic Mixer, equipped with a heat-sensitive element, Control valve moving. Closure or open import and export of hot or cold water. Spool built-in thermal components, using copper precision made. Spool control precision, good stability, and durability. To install it with a Bath Shower Mixer Tap valves, all you have to do is remove the grub screw on the body underneath (3mm Allen key is commonly required) and push it into place. When the thermostat knob to set certain temperature, the Thermostatic Mixer by adjusting the ratio of the inlet and outlet of the hot and cold, make outlet water temperature is always maintained constant., Manufacturer: NIHUIFDPY