Thermostatic Valve Top Dial - Controls water flow to one outlet Middle dial - Adjusts water temperature. Bottom Dial - Manages water flow to either of the two outlets High-Quality Design Matt Black Finish Thermostatically controlled Manufactured from highly durable brass 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 +/-1ºC Pre-set maximum temperature Automatic shut off in event of water cold supply failure UK standard size fitting Technical Information Suitable for the following water systems: Combi-boilers Gravity Fed systems MegaFlow Systems Pumped systems Un-vented systems Pressurised cylinder systems Subject to a minimum of 1.0 bar water pressure Package Contents Thermostatic concealed valve