General description The Parts Thermostatic Head is designed for replacing thermostatic radiator valves, featuring a M30 x 1.5 mm threaded connection. It offers 5 adjustable temperature settings, allowing users to customize their heating needs effectively. Technical specifications Thread size: M30 x 1.5 mm Temperature control: 5 adjustable stages (0 is off, 1-5 is intensity in ascending order) Material: High-quality forged and machined brass with a nickel-plated exterior and plastic Installation Align the scale with "5" before installation Screw on the union nut and tighten Ensure the water flow arrow points in the same direction as the water flow Both vertical and horizontal installation are recommended Usage Adjust the thermostat according to your heating needs Use the lowest speed setting "*" for long ventilation periods Features anti-freeze and temperature regulation functions Other information Package contents: Includes 4 thermostatic heads Please check compatibility with your