# VST Precision 58mm Filter Basket (20g)

> Espresso compatibility data from EspressoFit. Confidence: **manufacturer (Tier 1 — manufacturer primary source read firsthand)**.
> Sources last read firsthand: 2026-07-04.
> Canonical page: https://espressofit.com/baskets/vst-58mm-precision-20g/

## Specifications

- **Diameter:** 58 mm
- **Depth:** 26 mm
- **Type:** non-pressurized (single-wall)
- **Brand:** VST

## Fits these machines

- 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/
- 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/

## Notes

The 20g size of VST's precision basket line — the largest of the three sizes
(15/18/20g) that VST states fit most La Marzocco and Rancilio standard
portafilters, at 26.0mm depth per VST's own size table. Note VST's caveat
that some Rancilio portafilters may need a bottomless portafilter for sizes
above 18g. Does not fit 54mm machines. Verified against the official VST
store page on 2026-07-04. See the 15g and 18g entries for the smaller
variants.

## Sources

- https://store.vstapps.com/products/vst-precision-filter-baskets
  - Official VST store product page, read firsthand 2026-07-04. States verbatim: 'Designed to fit most 58mm Portafilters (inside diameter)' and '20g, 18g & 15g fits most La Marzocco, Synesso, Nuova Simonelli, Faema, La Cimbali, Rancilio'. The page's per-size table lists the 20g basket at 26.0mm height. Available in standard (ridged) and ridgeless versions. 'VST Filters DO NOT fit 49, 53 or 54mm portafilters.'

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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.