# IMS B70 Competition 1 Cup H19.5 (B701TH19.5N)

> Espresso compatibility data from EspressoFit. Confidence: **manufacturer (Tier 1 — manufacturer primary source read firsthand)**.
> Sources last read firsthand: 2026-07-26.
> Canonical page: https://espressofit.com/baskets/ims-b70-competition-1-cup-h19-5/

## Specifications

- **Diameter:** 58 mm
- **Depth:** 19.5 mm
- **Type:** non-pressurized (single-wall)
- **Brand:** IMS

## Fits these machines

- Breville Oracle (58mm portafilter) — https://espressofit.com/machines/breville-oracle/
- ECM Estetika (58mm portafilter) — https://espressofit.com/machines/ecm-estetika/
- ECM Mechanika MAX II (58mm portafilter) — https://espressofit.com/machines/ecm-mechanika-max-ii/
- Flair 58 (58mm portafilter) — https://espressofit.com/machines/flair-58/
- La Marzocco GS3 (58mm portafilter) — https://espressofit.com/machines/la-marzocco-gs3/
- La Marzocco Linea Micra (58mm portafilter) — https://espressofit.com/machines/la-marzocco-linea-micra/
- La Marzocco Linea Mini (58mm portafilter) — https://espressofit.com/machines/la-marzocco-linea-mini/
- Lelit Bianca (PL162T) (58mm portafilter) — https://espressofit.com/machines/lelit-bianca/
- Lelit Elizabeth (PL92T) (58mm portafilter) — https://espressofit.com/machines/lelit-elizabeth/
- Lelit Kate (PL82T) (58mm portafilter) — https://espressofit.com/machines/lelit-kate/
- Lelit MaraX (PL62X) (58mm portafilter) — https://espressofit.com/machines/lelit-marax/
- Lelit Victoria (PL91T) (58mm portafilter) — https://espressofit.com/machines/lelit-victoria/
- Rancilio Silvia (58mm portafilter) — https://espressofit.com/machines/rancilio-silvia/
- Rancilio Silvia Pro (58mm portafilter) — https://espressofit.com/machines/rancilio-silvia-pro/
- Rancilio Silvia Pro X (58mm portafilter) — https://espressofit.com/machines/rancilio-silvia-pro-x/
- Rocket Espresso Appartamento (58mm portafilter) — https://espressofit.com/machines/rocket-appartamento/
- Rocket Espresso Epica (58mm portafilter) — https://espressofit.com/machines/rocket-epica/
- Rocket Espresso Giotto Fast (58mm portafilter) — https://espressofit.com/machines/rocket-giotto/
- Rocket Espresso Mozzafiato Fast (58mm portafilter) — https://espressofit.com/machines/rocket-mozzafiato/
- Rocket Espresso Porta Via (58mm portafilter) — https://espressofit.com/machines/rocket-porta-via/
- Rocket Espresso R Nine One (58mm portafilter) — https://espressofit.com/machines/rocket-r-nine-one/

## Notes

The **shallowest** basket in IMS's B70 line at 19.5mm — a true single-shot
basket rated 7–9g for a dark roast and 9–11g for a light one. Single baskets are
unforgiving because the puck is thin, so the shallow, narrow bed and the modest
177-hole count (0.30mm, normal pattern) are doing deliberate work: less open area
than a double keeps resistance up at a small dose.

If you mostly pull doubles, the [H24.5](/baskets/ims-b70-competition-1-cup-h24-5/)
or [H26.5](/baskets/ims-b70-competition-1-cup/) 1-cup baskets sit higher in the
range. Standard B70 geometry otherwise — Ø70mm border, Ø60mm body, 60.5mm
external ridge — and the same official B70 fitment: La Marzocco, Rancilio, Lelit,
Rocket, ECM and the Breville Oracle. Gaggia is B68, not B70. Verified against
IMS's official product page and Competition catalogue.

## Sources

- https://www.imsfiltri.com/filters/B701TH19.5N.html
  - Official IMS Filtri product page ('B70 1 Cup - H19.5 Competition'), read firsthand 2026-07-26. Specs verbatim: 'Border: Ø 70 mm', 'Body: Ø 60 mm', 'Height: 19.5 mm', tamper 'Ø 58/58.4 mm', ridge 'External Ø 60.5 mm', '177' holes of 'Ø 0.30 mm' in the 'Normal pattern'. Capacity 7/9 gr (dark roast), 8/10 gr (medium), 9/11 gr (light).
- https://www.imsfiltri.com/IMS-competition-Catalogue.pdf
  - 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, so B70 baskets do not cross-reference Gaggia machines.

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Compatibility reference, not a substitute for your machine's manual. Every claim above cites the source it came from; see https://espressofit.com/methodology/ for how entries are verified. Corrections: corrections@espressofit.com.