Rancilio 'Classe 10' Water Knob /electric-kettles La Marzocco first established itself

La Marzocco first established itself with Starbucks in the mid-'90s

Straightforward bolt-in swap for anyone comfortable with basic hand tools

and Mac Cup machines

Faema E-91 Boiler Inlet Tube Assembly

Rancilio 'Classe 10' Water Knob /electric-kettles La Marzocco first established itselfRancilio Classe 10 Water Valve Knob OEM style water knob originally engineered for the Classe 10, but it interchanges cleanly with any commercial Rancilio machine using the same valve stem. The spring is included, so you're not stuck sourcing that separately. COMPATIBILITY Fits: Rancilio Classe 10 (original application); interchangeable with other commercial Rancilio models sharing the same water valve stem Replaces: Rancilio R_1253 INSTALLATION