This thermostatic shower mixer bar valve allows you to halt or control the flow of your shower, whilst the thermostatic control gives complete temperature performance, suitable for any modern bathroom. The left dial controls the water on/off and water flow, and acts as the diverter to the rain shower or the handset. While the right dial controls the temperature which has a safety stop present as a set temperature of 38 degrees C. for comfort and safety. Matte black finish creates a premium feel to the bathroom, and its made of solid brass for long lasting use. This thermostatic shower mixer bar is compatible with UK standards and suitable to be installed with any compatible shower rail and universal shower hose.