Cold water temperature: 4-29 ° C, hot water temperature: 55-85 ° C. All components are coupled IPS G1 / 2 inch for shower hose connection. Connect to hot and cold water - and mixed the water flow goes to the temperature you set at. If the cold water supply fails, the flow will be reduced to virtually shut off, avoiding the risk of scalding. Thermostat mixing valve (temperature control) with non-return valve, avoiding scalding yourself and ensuring that you use lukewarm water.