Nuova Simonelli Conical Group Head Gasket 71 x 52 x 5/7mm.
NOT for the Aurelia.
Nuova Simonelli have switched back and forth from the flat style gasket S_2 to the conical and gave up: they now offer both. This version is suitable for the Appia, Appia II, Appia Life, Mac, Mac 2000, Optima, Oscar V1 (old), Personal, Premier, Premier Maxi, Program, Program VIP and Theresa models.
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.