Italian-Made - Each R9 is expertly crafted in the Rocket Espresso factory in Milan, Italy. Saturated Boilers - Each group gets its own independently controlled 1.9-liter brew boiler. PID Controllers - PID controllers for each group promise to-the-degree accuracy for multiple coffee types. Stainless Steel - The R9's modern shape cuts an impressive figure on a bar. Barista Ergonomics - No-burn steam wands, backflush programming, tall feet, and a low-set control cluster all improve workflow at rush hour. The last word in coffee shop espresso, the R9 brings labor-saving technology to the bar. Each machine comes set from the factory with PID-controlled independent brew boilers and an electronic transducer for quick-recovery steam pressure. This lets you dedicate individual groups for different roasts, drinks or profiles without sacrificing space for a second machine. All this tech is finished with barista features like no-burn steam wands and shot programming and wrapped in a sturdy 304 stainless steel case. Boiler Volume: 2 Group: 2x 1.9 L brew boilers; 9 L steam boiler