Part # F_134-2 Stainless steel Espresso Machine Steam Wand Tip with 2 holes at 30 thousandths width and at a 30 degree angle. Designed specifically for the after-market CMA steam wand, or and some other after-markets. Primarily for commercial equipment.
Yes, the microfoam is amazing and they fit most all machines that have a wand where the male threads on the wand are 10mm outside diameter and each thread is 1mm apart from peak to peak; 1.0 thread pitch (in most cases, this is only on commercial after-market machine steam wands) and no more than five threads high. Be certain to carefully inspect and measure your existing wand before purchasing. You may want to consider purchasing a new after-market steam wand for your model that would accept this tip.
Note: The Silvia version 1 and 2 do not have a 10mm steam wand and hence this tip cannot be fitted to it, and the threads are too long on the version 3, so this tip doesn't fit on any Rancilio O.E.M. steam wand.