This is the new style replacing the older black (and even older white and red) switches and may require a bezel or plate that surrounds the switch covering the hole in the control panel (for models prior to serial number 36391). We have been unsuccessful in sourcing a bezel for this application.
A bezel with two mounting bolts came with the second version black switches, but this required customers to drill holes in the control panel. The third version was also black, and it is unclear why Marzocco decided to start using the current version. All three version switches after the old original white and red version require a bezel or cover for the space left on either side of the switch, as they are not as wide as the old white and red version.
This *NEW* FOURTH version is now shipping from La Marzocco, and still have the thinner width dimension than the old white versions.
Switch Dimensions: 24 mm wide x 44 mm tall - approximate inside/cut-out dimensions: 21 mm wide x 41 mm tall.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.