Cimbali M28/M30 main power switch knob

The switch knob on this product page is used on various older La Cimbali espresso machine models. This model of switch can be used on the La Cimbali M28 and the La Cimbali M30. This switch knob is used as a main power switch knob. The La Cimbali part reference numbers for this item are 435715000, 435-715-000, 472878000, 472-878-000, 496788000 and 496-788-000 

This switch knob does come with the spring already installed, the spring reference number is 544400230. The shaft size of this selector switch knob is 5x5mm. The switch has been made in Italy.

Note: this spring is not the same spring used on the steam and water valves of La Cimbali.