IMS B68 Competition Convex 2/3 Cup (B682TCH26.5E)
verified · 6 July 2026That model name is an IMS product code — series, cup count, height and hole pattern are all encoded in it. IMS basket codes, decoded explains how to read one, and lists every code covered here.
This basket is one of a line. See every IMS B68 Competition basket compared — the whole ladder of heights and variants on one page, with the three diameters they share.
Fits these machines
- Gaggia Classic GT (58mm portafilter)
- Gaggia Classic Pro (E24) (58mm portafilter)
The convex-bottom, higher-capacity sibling of the B682TH24.5M in IMS’s Gaggia-fit B68 series (Ø 68mm border, 2mm narrower than the B70, standard Ø 58mm tamper). At 26.5mm height it takes larger doses than the 24.5mm variant — IMS rates it 17-23g depending on roast — so check headroom against the stock Gaggia shower screen with bigger doses. Verified against the official IMS product page and catalogue on 2026-07-06.
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Also fits the same machines
Other items confirmed to fit machines this one fits — useful if you're kitting out a single setup. The count is how many of those machines overlap; nothing here is a new fitment claim.
- Gaggia 58mm Single-Shot Filter Basket (58mm basket) — shares 2 machines
- Gaggia Barista Pro IMS Filter 20g Nanotech (58mm basket) — shares 2 machines
- Gaggia Bottomless Filter-holder (ashwood handle) (Portafilter) — shares 2 machines
- Gaggia Crema Perfetta Pressurized Basket Kit (58mm basket) — shares 2 machines
- Gaggia Wooden Handle Filter-holder (spouted) (Portafilter) — shares 2 machines
- IMS B68 Competition 1 Cup H24.5 (B681TH24.5E) (58mm basket) — shares 2 machines
FAQ
- What size portafilter is the IMS B68 Competition Convex 2/3 Cup (B682TCH26.5E) for?
- It is a 58mm basket, 26.5mm deep, for 58mm portafilters.
- Is the IMS B68 Competition Convex 2/3 Cup (B682TCH26.5E) pressurized?
- No — it is a non-pressurized (single-wall) basket, for freshly ground coffee.
- Does the IMS B68 Competition Convex 2/3 Cup (B682TCH26.5E) 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 Convex 2/3 Cup (B682TCH26.5E) fit?
- Gaggia Classic GT; Gaggia Classic Pro (E24) — each confirmed against manufacturer sources (listed below).
Sources
- https://www.imsfiltri.com/filters/B682TCH26.5E.html (archived) — Official IMS Filtri product page ('Competition - Convex Bottom', B68 2/3 cups), read firsthand 2026-07-06. Specs verbatim: 'Border: Ø 68 mm', 'Body: Ø 60 mm', 'Height: 26.5 mm', tamper 'Ø 58 mm', ridgeless, convex bottom that 'collects coffee towards the center', '715 holes in hexagonal pattern' of Ø 0.30 mm over a 'Ø 49 mm area optimized for convex shape'. Capacity 17/19g (dark roast) to 20.5/23g (light roast). IMS migrated its product URLs in 2026; this citation was repointed from the original imsfiltri.com/prodotto/ address to the canonical page that address now redirects to, re-checked 2026-07-26 (same product page, content unchanged). Amazon listing verified firsthand 2026-08-03: 'Classic IMS Competizione B682TCH26.5E Triple Shot 16g-22g Basket.' — the B682TCH26.5E code in the listing title matches this entry exactly, TC convex profile included. Add-to-cart present, i.e. actually buyable, at the time of checking.
- https://www.imsfiltri.com/IMS-competition-Catalogue.pdf (archived) — Official IMS Competition Series catalogue, read firsthand 2026-07-04: '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.'
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