COCA COLA BIB CONNECTOR ADAPTER or CLEANER FITTING
This adapter screws into a red Coca Cola BIB Connector (that screws onto the syrup bag). It allows you to add hose and another connector to an existing Coke syrup hose. That means you do not have to remove or cut off the Coke BIB Connector to change to a Pespi or some other type / brand of BIB Connector.
You also use this fitting for a line cleaning adapter. Attach a cleaning solution pressurized container to it, screw into the syrup line and flush / clean / sanitize the lines.