La Pavoni domestic lever group steam wand. Fits the Europiccola and Professional models from ca. 1994 onward. The "Removable" in the name refers to the "clutch" type fashion of the wand being affixed to the valve body, as opposed to the older (obsolete) type that was affixed using a nut and ferrule.
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.