What is thermostatic mixer tap, its function is mixing cool and hot water to meet preset temperature automatically, and maintaining the temperature stably and constantly. You can also adjust temperature you need by controlling rotary knob manually. While taking a shower, the water is always the preset temperature. Very convenient to use. Features - Color: Golden. - Material: Copper. - Size: About 11.50X6.20X3.80cm/4.52X2.44X1.49in. - Made from high grade and durable copper, hard and not easy to deform. - Adjust the portion of the water easily to achieve the effect of constant temperature. - Sturdy structure, durable and practical, very stable, not easy deform, convenient to use. - Constant temperature, bid farewell to uneven water conditions, practical. - Theme brass casting, uniform shell thickness, very sturdy and durable for use. Speciation Working pressure: 0.05-1mpa Recommended pressure: 0.1-0.5 mpa (a relief valve is required for pressure above 0.5 mpa) Standard pressure: dynamic pressure 0.3±0.02 mpa Cold water supply temperature: centigrade- centigrade Hot water supply temperature: 55 degree centigrade-85 degree centigrade Recommended normal use temperature: 60-70 degree centigrade Water temperature control range: 20 degree centigrade-50 degree centigrade Safety button temperature: centigrade Package list: 1 x thermostatic valve