Yes and no, since there’s not much of a range with portafilter diameters. 58mm is the most commonly used size for commercial style portafilters However, many manufacturers who opt to use pressurized portafilters for their machines will use smaller diameters. Are all 58mm portafilters interchangeable? What Pat said — 58mm baskets are interchangeable, but many … Read more
There are common portafilter sizes and common basket sizes (e.g., 58mm), but no, there really isn’t a standard The grouphead geometry changes considerably among espresso machines. Do all portafilters fit all espresso machines? The compatibility of portafilters between brands sometimes becomes an issue. Most manufacturers make their own versions and even those of the same … Read more
Rancilio and e61 pfs are interchangeable , and the bottomless rancilio is sold by a few on line vendors as an E61 bottomless, so you got lucky. Are portafilters interchangeable? There is no consensus on whether bigger is better or which proprietary hole pattern is better. The often frustrating thing for home baristas to keep … Read more