①. Thermostatic radiator head: The 4-piece thermostatic radiator head has a 30 x 1.5 mm thread connection, which is suitable for the 30 x 1.5 mm thread connection provided by the radiator manufacturer. The temperature controller head is made of certain materials and is not easily deformed or damaged. Easy to use and has a long service life. The thermostatic radiator valve is affected by the heating temperature and room temperature, and can sense the changes in the outdoor temperature. No fixed temperature adjustment range. ②. TRV head heater valve with antifreeze and regulation function, widely used in water, non-corrosive liquid, non-flammable gas. ③. Please confirm whether this Single thermostatic head is suitable for your faucet before purchasing. The control knob is marked with a scale, and the internal temperature can be adjusted according to your needs. ④. Features: 1. TRV constant temperature radiator, 5-speed adjustment, easy to install. If you need to turn off the thermostat, just use the modulation arrow 0. 2. Compact radiator, suitable for built-in valve blocks. Connection thread: M30 x 1.5. 3. Provide a delicate white or full chrome model with a chrome-plated sensor that complements the radiator and towel rail 4. Ultra-thin manufacturing technology. ⑤. Specifications: Material: plastic + alloy Connection thread: M30 x 1.5 Liquid sensor (hydraulic sensor) output: AC 230V; 50 Hz Setpoint range: 6-28 degrees Celsius Temperature hysteresis: 1.0 K Maximum operating pressure: 10 bar ⑥. The radiator head with frost protection and regulation functions can help you regulate. It is made of certain materials, durable and comfortable to use. ⑦. The control knob is marked with a scale, which can adjust the internal temperature according to your needs. The thermostatic radiator head is made of brass, steel and plastic, which is not easy to deform or damage. ⑧. Thermostatic radiator valve: 4 x thermostatic radiator head