Not for all models, on the old Bezzera BZ02, 35, 40, 99 and the Pasquini Livia 90 an additional spacer is required. O-ring not included.
Attention CA Residents: Prop 65 Warning
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.