IMS’s B68-series competition basket — the Gaggia-fit counterpart to the B70.
Per IMS’s own catalogue, the B68 body matches the B70 but the border is 2mm
narrower (Ø 68mm vs Ø 70mm) specifically to fit Gaggia, Carimali and La
Cimbali portafilters; it still takes a standard Ø 58mm tamper. This is why
the Gaggia Classic Pro is cross-referenced here and deliberately NOT on the
B70 entry. Verified against the official IMS product page and catalogue on
2026-07-04.
FAQ
What size portafilter is the IMS B68 Competition 2 Cup (B682TH24.5M) for?
It is a 58mm basket, 24.5mm deep, for 58mm portafilters.
Is the IMS B68 Competition 2 Cup (B682TH24.5M) pressurized?
No — it is a non-pressurized (single-wall) basket, for freshly ground coffee.
Does the IMS B68 Competition 2 Cup (B682TH24.5M) fit 54mm machines like the Breville Barista Express?
No. It is a 58mm basket, so it does not fit Breville's 54mm machines or any 54mm portafilter.
Which machines does the IMS B68 Competition 2 Cup (B682TH24.5M) fit?
Gaggia Classic GT; Gaggia Classic Pro (E24) — each confirmed against manufacturer sources (listed below).
Sources
https://imsfiltri.com/prodotto/b682th24-5m/(archived) — Official IMS Filtri product page, read firsthand 2026-07-04. Specs verbatim: 'Border: Ø 68 mm', 'Body: Ø 60 mm', 'Height: 24.5 mm', 2 cups, capacity '16/18 gr' (dark roast) to '20/22.5 gr' (light roast), tamper 'Ø 58 mm', '641 holes in Micro pattern' of Ø 0.30 mm over a Ø 44 mm perforated area, ridgeless, with a rounded internal corner bottom.
https://www.imsfiltri.com/IMS-competition-Catalogue.pdf(archived) — Official IMS Competition Series catalogue, read firsthand 2026-07-04. States verbatim: 'B68 (BORDER Ø 68 mm) CARIMALI, GAGGIA, LA CIMBALI. The body of B68 filters is the same as B70 filters but with a border that is 2 mm narrower for a better fit in portafilters of the quoted brands.'