【Premium Material】The radiator valve thermostatic head is made of outstanding alloy and plastic material with fine workmanship and good performance, which is durable and practical to use, not easily deformed or damaged. 【Easy to Use】Our thermostatic radiator valve heating system with anti-freeze protection and adjustment function which can provide adjustment help, the zero setting ratio upper limit is 0, *, 1-5. 【5 Levels of Modulation】The thermostatic radiator with 5 levels of modulation and is easy to install, if you need to turn off the thermostat, just use the modulation index arrow 0. 【Wide Applications】The radiator thermostat valve with m30x1.5 threaded connections and fit for 30 x 1.5 threaded connections from radiator manufacturers. 【What You Will Get】You will receive 2 pcs of radiator valve caps, in the size of M30*1.5. This thermostatic radiator valve has no fixed temperature adjustment, affected by heating temperature, and room temperature can sense changes in external temperature. Note: This product can only be installed horizontally, please do not install it vertically!