Very convenient having EP assemble into a kit all parts needed for repair of my 20 yr old Rancillio Silvia v.1's steam valve, and delivery was prompt. Review would have been "excellent" rather than "good" if the "kit" had also included a step by step instruction sheet. I figured it out-eventually-from an online schematic, but the repair--not including the time to purchase a pair of 22 mm crescent wrenches at Home Depot-- took more than 2 hours, probably an hour more than it would have with clear directions. But once installed, it worked like a charm. no more water dripping from the steam wand.