The portafilter does not fit my gaggia. I knew it was a camble, but I had assumed that because it already had a broad compatible that I thought it would be fine. Did some more research afterward and realized it's more designed for e61 group heads. The ears are 1mm too thick to fit. I could still fit the basket in my old portafilter however. I noticed that the basket top sticks up from my porta filter and doesn't sit flush in it. Also, the basket rim design isn't flat. This creates an issue where the basket sits a few mm taller than the portafilter. I am able to properly lock it in with 16g dose, but any more than that and I wouldn't be able to fit the 0.3mm puck screen. Still happy with it and I can save the portafilter for when I upgrade my machine later on.