EspressoFit

The 58mm portafilter standard

The 58mm portafilter is the commercial standard, used across professional and prosumer machines from La Marzocco, Rancilio, Lelit, Gaggia and many others. Baskets, tampers and accessories built to this standard are broadly interchangeable — though basket depth and body shape still vary, so check the individual entries below for sourced fitment details.

New to portafilter sizing? See espresso portafilter sizes explained for how 58mm compares to the other standards and why parts don’t interchange across sizes. Also useful: which tamper size fits and groupheads explained. And if you have a 58mm machine but a basket still won’t seat, read why “58mm” isn’t one standard.

Know your machine already? Skip the browsing — the parts finder lists everything confirmed to fit it, with the source behind each answer.

58mm57mm54mm52mm51mm
Portafilter standards to scale. A few millimetres is the difference between a part fitting and not — a 51mm basket will not seat in a 58mm portafilter, and vice versa.

58mm machines (27)

58mm baskets (37)

58mm parts (15)