# Gaggia Barista Pro IMS Filter 20g Nanotech

> Espresso compatibility data from EspressoFit. Confidence: **manufacturer (Tier 1 — manufacturer primary source read firsthand)**.
> Sources last read firsthand: 2026-07-07.
> Canonical page: https://espressofit.com/baskets/gaggia-barista-pro-ims-20g/

## Specifications

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

## Fits these machines

- Gaggia Classic GT (58mm portafilter) — https://espressofit.com/machines/gaggia-classic-gt/
- Gaggia Classic Pro (E24) (58mm portafilter) — https://espressofit.com/machines/gaggia-classic-pro/

## Notes

Gaggia's own-branded IMS competition filter — a 20g Nanotech basket sold with
Gaggia's bottomless filter-holder for the Classic. Note the nuance: its 70 mm
figure is the IMS **B70** border diameter, the wider 58/58.4 mm-tamper series
— whereas the stock Gaggia Classic portafilter takes the narrower **B68**
(Ø 68 mm) series. Gaggia's own bottomless holder (59 mm housing) accommodates
this wider B70 filter, which is why Gaggia pairs them. So this basket fits the
Gaggia Classic **via Gaggia's bottomless filter-holder**, not necessarily the
stock two-eared portafilter. Non-pressurized, AISI 304 steel, 661 holes.
Verified against Gaggia's official accessory page on 2026-07-07.

## Sources

- https://www.gaggia.com/accessories/bottomless-filter-holder-and-barista-pro-filter/
  - Official Gaggia accessory page, read firsthand 2026-07-07. States verbatim: 'Barista Pro IMS Filter 20 gr Nanotech: the filter holes are specifically designed to ensure uniform extraction and the best in cup result, avoiding channeling. Filter diameter: 70 mm. Height 26 mm. 661 holes. Aisi 304 steel.' Sold on the same page as Gaggia's 'Bottomless Filter-holder ... for Gaggia Classic. ... Filter holder diameter: 59 mm.' The 70 mm figure is the IMS B70-family border diameter (the basket seats on a 58 mm portafilter); an IMS-made, non-pressurized competition-style filter. Amazon listing verified firsthand 2026-08-03: 'IMS Baristapro Nanotech Precision Ridgeless Double Portafilter Basket - 20 Gram' — the listing page states 70 mm, 26 mm, AISI304 and Nanotech at 20 gram — every figure Gaggia's own accessory page gives for this filter. Add-to-cart present, i.e. actually buyable, at the time of checking.

---

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.