Quality material: alloy and plastic carefully made thermostatic radiator head with excellent adjustment and durability. Opt for this thermostatic head to avoid the hassle of frequent replacements and enjoy durable, stable heat ADJUSTABLE THERMOSTAT - The 4-part thermostatic radiator head with 5 adjustable positions allows you to easily adjust the temperature according to your needs. If you go out for a long time or ventilate the room, you can place it in the lowest position to achieve accurate temperature control and create a comfortable living environment Anti-freeze protection: the thermostatic radiator head equipped with frost protection effectively prevents freezing of the radiators and ensures that the room remains warm even in the cold winter months. Ideal for homes, bedrooms and offices SELF-ADJUSTABLE:The radiator thermostat has no fixed temperature setting and can automatically adapt to the temperature difference between indoor and outdoor to achieve precise temperature control, avoid energy waste, and create a comfortable and energy-saving indoor climate for you VERSATILE USE - Thermostatic radiator valve for all types of radiators including towel rails, column radiators, panel radiators and vertical flat tube radiators. 30 x 1.5mm threaded connection for quick and easy installation