The A7-A9-C60-D6-E6-F7-F8-ENA Milk Tube connects the black
Milk Tube Connector to the Frother Housing. Milk is siphoned through the Milk Tube into the Frother Housing where it is steamed/frothed, then dispensed through the Frother Nozzle. Milk tubes should be cleaned regularly and it is recommended milk tubes be replaced every month, depending upon use. The connectors, Frother Housing and Frother Nozzle can become clogged with milk deposits over time and need to be replaced.