The J9-J80-J85-J90-XJ9-Z7-Z9 Dial Component, also known as an Air Intake Regulator, connects to the black steam nozzle and is sealed by 2 red
Frother Nozzle O-rings. The Milk Tube and Connector inserts into the side of the Dial Component. The Venting Tip, located at the top of the Dial Component, regulates the airflow to create fine foam and properly steamed milk.