[easy to install] - remove the screw, pull out the old thermostatic cylinder, align the screw hole, install the new ink , and then fix it with the hexagonal wrench. [Safe and Comfortable] - Outlet water temperature range: 20-50°C,Safety button temperature: 38°C. Don't worry about the damage caused by the sudden cold and hot water due to the unstable water pressure, effectively protect the elderly and children [intelligent temperature control] - automatically balance the pressure of hot and cold water, without manual adjustment, and quickly keep the water temperature stable. [high quality] - this thermostatic shower mixing valve is made of solid brass. It's made of alloy. This valve core can resist fouling and in daily use., Manufacturer: Akfldms