Nes Home Gemma Round Thermostatic Bar Valve & Slider Rail Kit + Easy Fitting This Shower Mixer is a sleek and modern design to suit your bathroom regardless of the theme. This solid brass round thermostatic exposed shower mixer is a sleek and modern design and a cost effective showering solution. This thermostatic shower mixer with a 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 diverter controls the water the water on/off and the water flow and the diverter on the right controls the temperature which has a safety stop preset as a set temperature of 38 degrees C. for comfort and safety. The slider rail also comes with an adjustable bracket for the handheld shower allowing you to change the angle of the the handset and move it up and down to suit your preference. In this package comes with a 10 year guarantee.