Wega replacement Steam and Water Knobs available from Coffee Spares Direct. These knobs are usually mounted on the front of the machine for all models including the following AIRY, ATLAS, COLOSSEUM, COMBINOVA, ESPRESSA, EURO-2000, FORMULA-MILANO, JUNIOR, MININOVA, NOVA, ORION ECO, POLARIS, SPHERA, START, SYNTESIS, VELAX