1/4" Male BSP x 1/4" Female BSP, narrow style solenoid coil.
Asco coil Type ZB12A, valve L172V23, however Rancilio add the two thread-locked fittings to the assembly.
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.