IMS B64 Competition 2 Cup H19.5 (B642TH19.5N)
verified · 16 August 2026That 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 B64 Competition basket compared — the whole ladder of heights and variants on one page, with the three diameters they share.
Fits these machines
- Lelit Anna (PL41TEM) (57mm portafilter)
The shallower of IMS’s two 57mm competition baskets — 19.5mm, against the 22mm. IMS rates it 11.5–13.5 g for a dark roast and up to 17.5 g for a light one, which makes it the lower-dose choice for a Lelit Anna.
The B64 family is only two baskets deep:
| Code | Height | Dark | Medium | Light |
|---|---|---|---|---|
| B642TH19.5N | 19.5mm | 11.5/13.5 g | 12.5/14.5 g | 15/17.5 g |
| B642TH22N | 22mm | 13.5/15.5 g | 14.5/16.5 g | 17/19.5 g |
Worth noting how far roast level moves it: the same basket takes six grams more of a light roast than a dark one. If you switch between roast styles, the 19.5mm covers a genuinely useful range on its own.
Geometry, and the N pattern
Ø64mm border, Ø58mm internal body, ridgeless, for a Ø57mm tamper — and 349 holes in IMS’s M pattern over a Ø44mm perforated area, described as “Relaminated and Recalibrated”. The recalibration step is what separates the competition line from IMS’s standard baskets: it tightens the tolerance across every hole so flow stays even rather than running fast in patches.
Note the border figure. At Ø64mm this is a different series from the Ø70mm B70 baskets used by 58mm machines — which is precisely why a “58mm” basket will not seat in an Anna regardless of what a listing claims. See why 58mm isn’t one standard.
Pair it with the LELIT57 tamper, the LELIT57 bottomless holder or a 57.5mm puck screen.
Find the IMS B64 Competition 2 Cup H19.5 (B642TH19.5N) 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 B64 Competition 2 Cup (B642TH22N) (57mm basket) — shares 1 machine
- Lelit LELIT57 Bottomless Filterholder (PLA570S, classic handle) (Portafilter) — shares 1 machine
- Lelit LELIT57 Tamper (PLA471A, aluminium handle) (Tamper) — shares 1 machine
- Normcore Gravity Distributor Tool 57.5mm (Distribution tool) — shares 1 machine
- Normcore Ultra-Slim Puck Screen 57.5mm (0.8mm, 316 stainless) (Puck screen) — shares 1 machine
FAQ
- What size portafilter is the IMS B64 Competition 2 Cup H19.5 (B642TH19.5N) for?
- It is a 57mm basket, 19.5mm deep, for 57mm portafilters.
- Is the IMS B64 Competition 2 Cup H19.5 (B642TH19.5N) pressurized?
- No — it is a non-pressurized (single-wall) basket, for freshly ground coffee.
- Which machines does the IMS B64 Competition 2 Cup H19.5 (B642TH19.5N) fit?
- Lelit Anna (PL41TEM) — each confirmed against manufacturer sources (listed below).
Sources
- https://www.imsfiltri.com/filters/B642TH19.5N.html (archived) — Official IMS Filtri product page ('B642TH19.5N'), read firsthand 2026-08-16. Specs verbatim: 'Border: Ø 64 mm', 'Body: Ø 58 mm Internal', 'Height: 19.5 mm', 'Tamper: Ø 57 mm', 'Ridge: Ridgeless', average capacity '14/16 gr'. Perforation verbatim: 'Hole Pattern: 349 M pattern', 'Perforated Area: Ø 44 mm area optimized', 'Hole Diameter: 0.30 mm', 'Competition Perforation: Relaminated and Recalibrated'. The page's capacity table covers the whole B64 family — 'B642TH19.5N 19.5 mm 11.5/13.5 gr 12.5/14.5 gr 15/17.5 gr' and 'B642TH22N 22 mm 13.5/15.5 gr 14.5/16.5 gr 17/19.5 gr' — i.e. two heights only. Testing basis stated verbatim: 'Dark roasted (80/20 blend), Medium (100% Arabica), Light (Ethiopia single origin).'
- https://www.imsfiltri.com/IMS-competition-Catalogue.pdf (archived) — Official IMS Competition Series catalogue, read firsthand 2026-07-13, whose B64 series is headed 'for tamper 57' — the 57mm format used by Lelit's LELIT57 group.
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