Thermostatic Shower Mixer Valve - Top dial controls water diverter to an outlet (Shower Head) - Middle dial - controls water temperature - Bottom dial Control water outlet (handset) - High-Quality Design - Chrome Finish - Thermostatically controlled - Manufactured from highly durable brass - Inlet and Outlet Size: 1/2" BSP - Operating range 20 - 50 deg C with 38 deg C safety button - Built in non-return valves to prevent backflow and filters to protect the thermostatic mechanism - Chosen temperature maintained to within +/-1C - Pre-set maximum temperature - Automatic shut off in event of water cold supply failure - UK standard size fitting Suitable For The Following Water Systems - Combi-boilers - Gravity Fed ...