12/9 x 5 mm tall with a 7 mm I.D. hole. Also suitable for Elektra, Fiorenzato, Promac and others. This part functions the same as the R_1248, except is made of brass instead of PTFE. Rancilio use the R_1248 exclusively now.
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.