All spouts supplied complete with individual solenoid valve, copper tube inlet and combined servicing valve and filter. Consideration should be given to safe hot water delivery and the use of an appropriate temperature reduction device see A5900. Spouts with integral sensors detect hands within the sensing range and the solenoid valve is opened. Automatically shuts off if sensor is obstructed for a maximum of 50 seconds. Mains powered transformer with option to link up to 5 link units per main unit alternatively there are stand alone battery powered units. Flow rate regulated to 3.7 Litres per minute.