Use the E6-MU as a stand-alone unit or add more modules as your business grows. The E6-MU's modular construction allows for additional stand-alone units to be added (each dedicated to either milk or espresso) to accommodate capacity where needed. An E6 (espresso unit) can be added to double espresso output for locations that serve more iced latte drinks. Or, an extra MU (milk unit) can be added to increase milk capacity for locations that serve more hot beverages or to support expanded menu offerings.