Specification :

As the temperature of different products, the performance of three colors:
1. When the water temperature below 25 degrees, green one year warranty
2. When the water temperature at 25 degrees -35 degrees, It shows blue
3. When the water temperature at 35 degrees -45 degrees, It shows red
4. When the water temperature over 45 degrees, to be careful to avoid being burned, oh, flashing red alert you to take care
This product suits the diameter of 23.5 mm tap interface.