# La Marzocco Advanced Precision Basket (F.3.026–F.3.028)

> Espresso compatibility data from EspressoFit. Confidence: **manufacturer (Tier 1 — manufacturer primary source read firsthand)**.
> Sources last read firsthand: 2026-08-24.
> Canonical page: https://espressofit.com/baskets/la-marzocco-advanced-precision/

## Specifications

- **Diameter:** 58 mm
- **Type:** non-pressurized (single-wall)
- **Brand:** La Marzocco

## 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/

## Notes

La Marzocco's own precision baskets, sold in **7g, 14g, 17g and 21g**
capacities. The fitment claim is verbatim from La Marzocco — "Fits all La
Marzocco portafilters" — which covers the Linea Mini, Linea Micra and GS3
listed here.

## Part numbers, and one we won't state

Three of the four capacities have an unambiguous La Marzocco part number:

| Capacity | Part number |
|---|---|
| 21g | F.3.026 |
| 17g | F.3.027 |
| 14g | F.3.028 |
| 7g | **see below** |

The **7g** basket is the exception, and the reason is worth recording. La
Marzocco's page carries *two different part numbers for it*: the variant's own
purchase data gives **F.3.029**, while the description shown for that same
variant reads "SKU: F.3.053". The other three agree with themselves in both
places; only the 7g disagrees.

We are not going to pick one. Quoting a part number is a claim that you can
order that part and receive this basket, and with the manufacturer contradicting
itself we have no grounds to say which is right. If you want the 7g, select it
by capacity on La Marzocco's page rather than by ordering a code. If La Marzocco
resolves the conflict, this entry will state the number and cite it.

## Why this is one entry and not four

Elsewhere on this site the rule is one entry per specific variant — VST gets a
page per dose, IMS a page per code. Those splits are justified because the
manufacturer publishes something that actually differs: VST prints a height per
size, IMS a full spec sheet per code.

La Marzocco publishes **no per-size depth, no per-size dimensions and no
per-size fitment**. The only per-variant figures on the page are the shipping
carton's, and they are identical across all four sizes. Splitting this into four
pages would produce four near-identical documents distinguished by a gram
figure — the appearance of precision without the substance, which is the thing
this database exists not to do.

## What this basket does not tell you

No diameter is printed on the product page at all. The 58mm here is inherited
from La Marzocco's Linea Micra page, which states its Home machines take
"standard 58mm tampers" — a chain across two of the maker's own pages, which is
why this stays at the manufacturer tier. Depth is simply unpublished; if you
need to know how a 17g La Marzocco basket compares in height to a
[17g-equivalent IMS B70](/baskets/series/b70/), that comparison cannot be made
from published figures.

## Sources

- https://home.lamarzoccousa.com/product/basket-advanced-precision/
  - Official La Marzocco Home (USA) product page, read firsthand 2026-07-04 and re-read firsthand 2026-08-24. Describes the stainless steel filter basket verbatim as 'Advanced precision for consistent extraction. Superior material & finish with zero defects. Proprietary digital scanning and quality control coded basket for authenticity.' and states verbatim that it 'Fits all La Marzocco portafilters.' Sold in four capacities selected from one page — 7g, 14g, 17g and 21g — each a separate purchasable variant at the same price. The 2026-08-24 read recovered the per-capacity part numbers from the page's own variant data: 21g = F.3.026, 17g = F.3.027, 14g = F.3.028. The 7g variant is ambiguous on La Marzocco's own page and is deliberately not stated as fact here — see the entry body. The page prints no diameter and no per-size depth; the only per-variant dimensions it carries (3 x 3 x 1, 0.8 lb) are shipping-carton figures, identical across all four sizes, not basket specifications. The 58mm figure follows from La Marzocco's own statement on the Linea Micra page that its Home-line portafilters take 'standard 58mm tampers'.
- https://home.lamarzoccousa.com/product/linea-micra/
  - Official La Marzocco Home (USA) page, read firsthand 2026-07-04, backing the 58mm standard: 'Compatible with all La Marzocco Home machines along with standard 58mm tampers.'

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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.