IMS B70 Competition 2 Cup H24.5 (B702TH24.5M)

verified · 6 July 2026

Diameter: 58mm
Depth: 24.5mm
Type: non-pressurized
Brand: IMS

Cross-section to scale, from the dimensions IMS publishes for this basket. The border is what seats in the portafilter — not the tamper figure the size is usually quoted by. See why “58mm” isn’t one standard.

That 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 B70 Competition basket compared — the whole ladder of heights and variants on one page, with the three diameters they share.

Fits these machines

Breville Oracle (58mm portafilter)
ECM Estetika (58mm portafilter)
ECM Mechanika MAX II (58mm portafilter)
Flair 58 (58mm portafilter)
La Marzocco GS3 (58mm portafilter)
La Marzocco Linea Micra (58mm portafilter)
La Marzocco Linea Mini (58mm portafilter)
Lelit Bianca (PL162T) (58mm portafilter)
Lelit Elizabeth (PL92T) (58mm portafilter)
Lelit Kate (PL82T) (58mm portafilter)
Lelit MaraX (PL62X) (58mm portafilter)
Lelit Victoria (PL91T) (58mm portafilter)
Rancilio Silvia (58mm portafilter)
Rancilio Silvia Pro (58mm portafilter)
Rancilio Silvia Pro X (58mm portafilter)
Rocket Espresso Appartamento (58mm portafilter)
Rocket Espresso Epica (58mm portafilter)
Rocket Espresso Giotto Fast (58mm portafilter)
Rocket Espresso Mozzafiato Fast (58mm portafilter)
Rocket Espresso Porta Via (58mm portafilter)
Rocket Espresso R Nine One (58mm portafilter)

The 24.5mm-height flat-bottom variant of IMS’s B70 2-cup competition basket — 2mm shallower than the convex B702TCH26E entry, with a rounded internal corner instead of a convex bottom. Notable because IMS’s own La Marzocco guidance recommends the H24.5 or H26.5 heights for an 18g dose on La Marzocco machines. Same official B70 compatibility list as the other B70 entries. Verified against the official IMS product page and catalogue on 2026-07-06.

Find the IMS B70 Competition 2 Cup H24.5 (B702TH24.5M) on Amazon (affiliate link — see our disclosure)

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.

IMS B70 Competition 1 Cup (B701TH26.5E) (58mm basket) — shares 21 machines
IMS B70 Competition 1 Cup H18.5 (B701TH18.5N) (58mm basket) — shares 21 machines
IMS B70 Competition 1 Cup H19.5 (B701TH19.5N) (58mm basket) — shares 21 machines
IMS B70 Competition 1 Cup H24.5 (B701TH24.5N) (58mm basket) — shares 21 machines
IMS B70 Competition 2 Cup H22.5 M Pattern (B702TH22.5M) (58mm basket) — shares 21 machines
IMS B70 Competition 2 Cup H26.5 (B702TH26.5M) (58mm basket) — shares 21 machines

FAQ

What size portafilter is the IMS B70 Competition 2 Cup H24.5 (B702TH24.5M) for?: It is a 58mm basket, 24.5mm deep, for 58mm portafilters.
Is the IMS B70 Competition 2 Cup H24.5 (B702TH24.5M) pressurized?: No — it is a non-pressurized (single-wall) basket, for freshly ground coffee.
Does the IMS B70 Competition 2 Cup H24.5 (B702TH24.5M) 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 B70 Competition 2 Cup H24.5 (B702TH24.5M) fit?: Breville Oracle; ECM Estetika; ECM Mechanika MAX II; Flair 58; La Marzocco GS3; La Marzocco Linea Micra; La Marzocco Linea Mini; Lelit Bianca (PL162T); Lelit Elizabeth (PL92T); Lelit Kate (PL82T); Lelit MaraX (PL62X); Lelit Victoria (PL91T); Rancilio Silvia; Rancilio Silvia Pro; Rancilio Silvia Pro X; Rocket Espresso Appartamento; Rocket Espresso Epica; Rocket Espresso Giotto Fast; Rocket Espresso Mozzafiato Fast; Rocket Espresso Porta Via; Rocket Espresso R Nine One — each confirmed against manufacturer sources (listed below).

Sources

https://www.imsfiltri.com/filters/B702TH24.5M.html (archived) — Official IMS Filtri product page ('B70 2 Cups - H24.5 M Pattern'), read firsthand 2026-07-06. Specs verbatim: 'Border: Ø 70 mm', 'Body: Ø 60 mm', 'Height: 24.5 mm', tamper 'Ø 58/58.4 mm', ridge 'External Ø 60.5 mm', 641 holes in M pattern of Ø 0.30 mm over a Ø 49 mm perforated area, 'engineered with a rounded internal corner' to 'promote uniform extraction, facilitating a cleaner puck drying and easier expulsion'. Capacity 16/18g (dark roast) to 20/22.5g (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).
https://www.imsfiltri.com/IMS-competition-Catalogue.pdf (archived) — Official IMS Competition Series catalogue, read firsthand 2026-07-04, whose 'For tamper 58 / 58.4' B70 compatibility list names La Marzocco, Rancilio, Lelit, Rocket, ECM and 'BREVILLE (The Oracle)' among the fitting brands — and 'FLAIR ESPRESSO (58)', which is why the Flair 58 is cross-referenced here; Gaggia is assigned to the narrower B68 series.

Spot an error? The fastest fix is the source itself —send us the manufacturer page that contradicts this entry and we'll correct it and cite it. See how we verify.