EspressoFit

IMS B70 Competition NanoQuartz 2 Cup H20 (B702TFH20NT)

verified · 21 August 2026
Border Ø 70mmTamper Ø 58mm20mmBody Ø 60mm
Cross-section to scale, from the dimensions IMS publishes for this basket. The border is what seats in the portafilter — not the tamper figure the size is usually quoted by. See why “58mm” isn’t one standard.

That 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 B70 Competition basket compared — the whole ladder of heights and variants on one page, with the three diameters they share.

Fits these machines

The shallowest basket in IMS’s NanoQuartz-coated B70 line — 20mm, rated 11.5–13.5 g for a dark roast and 13–15 g for a light one. If you dose in the low teens, this is the NT basket that keeps the puck filling the basket instead of sitting at the bottom of a deeper one.

The NanoQuartz coating

The Nanotech line’s whole point is the surface. IMS describes the coating as enhancing water flow, preventing coffee oils from sticking and making cleaning effortless — in its own technical words, ‘Electropolished & Nanoquartz coated’, ‘highly resistant to chemical corrosion’ with residue removed ‘with a simple wipe’. Under the coating it is competition geometry: 715 holes of 0.30mm in a hexagonal pattern across a Ø49mm perforated face, flat-bottomed and cylindrical.

The full NT ladder

Code Height Dark Medium Light
B702TFH20NT 20mm 11.5/13.5 g 12/14 g 13/15 g
B702TFH22NT 22mm 14/16 g 14.5/16.5 g 15/17 g
B702TFH24NT 24mm 16/18 g 16.5/18.5 g 17/19 g
B702TFH26NT 26mm 18/20 g 18.5/20.8 g 19/21 g
B702TFH28NT 28mm 20/22 g 20.5/22.5 g 21/23 g

Five codes, and that is the whole family — the table above is IMS’s own, so there is no sixth NT height to hunt for. Every one of them carries the same Ø70mm border and Ø60mm body, so the choice is purely dose.

Same official B70 compatibility as the rest of the series. Gaggia machines take the narrower B68 series and are deliberately not cross-referenced.

Find the IMS B70 Competition NanoQuartz 2 Cup H20 (B702TFH20NT) 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.

FAQ

What size portafilter is the IMS B70 Competition NanoQuartz 2 Cup H20 (B702TFH20NT) for?
It is a 58mm basket, 20mm deep, for 58mm portafilters.
Is the IMS B70 Competition NanoQuartz 2 Cup H20 (B702TFH20NT) pressurized?
No — it is a non-pressurized (single-wall) basket, for freshly ground coffee.
Does the IMS B70 Competition NanoQuartz 2 Cup H20 (B702TFH20NT) fit 54mm machines like the Breville Barista Express?
No. It is a 58mm basket, so it does not fit Breville's 54mm machines or any 54mm portafilter.
Which machines does the IMS B70 Competition NanoQuartz 2 Cup H20 (B702TFH20NT) fit?
Breville Oracle; ECM Estetika; ECM Mechanika MAX II; Flair 58; La Marzocco GS3; La Marzocco Linea Micra; La Marzocco Linea Mini; Lelit Bianca (PL162T); Lelit Elizabeth (PL92T); Lelit Kate (PL82T); Lelit MaraX (PL62X); Lelit Victoria (PL91T); Rancilio Silvia; Rancilio Silvia Pro; Rancilio Silvia Pro X; Rocket Espresso Appartamento; Rocket Espresso Epica; Rocket Espresso Giotto Fast; Rocket Espresso Mozzafiato Fast; Rocket Espresso Porta Via; Rocket Espresso R Nine One — each confirmed against manufacturer sources (listed below).

Sources

Spot an error? The fastest fix is the source itself —send us the manufacturer page that contradicts this entry and we'll correct it and cite it. See how we verify.