Premium Material: Our thermostatic radiator valve head is made of durable and high-quality material, which has excellent durability, you don't have to worry about the thermostat main body being easily damaged.No fixed temperature adjustment range: The thermostatic radiator valve head has no fixed temperature adjustment, is affected by the heating temperature and room temperature, can sense changes in the outdoor temperature.Frost protection and adjustment function: The thermostatic radiator valve head has frost protection and adjustment function, can provide adjustment assistance and with liquid sensor and zero position. The radiator valve is suitable for compact radiators with integrated valve kit. The reset ratio is 0, *, 1-5.Threaded connection: The thermostatic radiator valve head is suitable for valves with M 30 x 1.5 threaded connections and also fits valves from other radiator manufacturers. Please check compatibility with your valve before purchasing as only the head is supplied.Easy installation: Radiator valve replacement head, first remove the old radiator thermostat, then set the new radiator thermostat to level 5 and finally mount the new thermostat on the valve, installation is complete.Special features:1. Flexible temperature adjustment: Radiator valve heads with 5-level modulation, the control handle is marked with a scale, if you want to turn off the thermostat, simply use the modulation arrow 0.2. High-quality material: The thermostatic head is made of durable and high-quality material, which protects the housing from damage and ensures a long service life.3. Easy installation: Installation is simple and quick. Simply remove the old radiator thermostat, set the new one to level 5 and mount it on the valve.Specifications:Product Name: Radiator Valve Thermostatic HeadTemperature Range: 6℃ - 28℃Maximum Differential Pressure: 0.1MPaWorking Pressure: 1.0MPa.Package Contents:4 x Radiator Thermostatic Heads.