This basket was originally designed for La Marzocco portafilters to fit inside the SWIFT grinder impeller chamber without getting caught. The advantage of using this basket is that a 58mm tamper will fit smoothly inside without catching on the ridge (as it can on a non-ridgeless basket).
NOTE: Since these basket are not sold directly from Marzocco, they do not have a Marzocco logo or part number stamped on.
