Rancilio 4 Hole Chrome Steam Wand Tip
OEM product. Fits Rancilio models that have a wand with a 10 mm outside diameter, and each thread is 1 mm apart from peak to peak; 1.0 thread pitch. Fits many other models of commercial after-market wands.
Sorry, this does not fit the version 1 or 2 Silvia models. It will fit the version 3 model, but with four holes the steam would exhaust so fast, it probably isn't an applicable part.