Features It is suitable for equipped domestic hot water appliances or underfloor heating, in order to meet the requirements of constant temperature range Built-in temperature control device provides anti-scalding safety function for family hot water system Thermostatic mixer with high flow and good performance, suitable for domestic hot water, with or without HWC underfloor heating circuit (hot water circuit) No matter how the temperature and water pressure change, it can ensure stable yield water The temperature range is 35-60 degrees. In case of cold water failure, the safety device will automatically cut off the hot water supply to avoid burns Specification: Item Type: Ceramic Screwdriver Material: Ceramic Package List:4 x Ceramic Screwdriver Package List