EspressoFit

IMS B70 Competition NanoQuartz 2 Cup H26 (B702TFH26NT)

verified · 11 August 2026
Border Ø 70mmTamper Ø 58mm26mmBody 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 26mm NanoQuartz B70 — rated 18–20 g for a dark roast and up to 21 g for a light one, which puts it squarely in normal-double territory with a non-stick surface.

What the NanoQuartz coating does

The NT suffix is IMS’s Nanoquartz coating — a non-stick quartz treatment on an otherwise standard B70 basket. Two practical effects: the spent puck releases cleanly instead of clinging to the walls, and coffee oils do not bake onto the surface, so the basket stays closer to new with a rinse rather than a scrub.

It is a surface treatment, not a geometry change. Ø70mm border, Ø60mm body, 715 holes, Ø58/58.4mm tamper — the same as the uncoated line. If you want the same dose without the coating, the plain B70 baskets are the equivalent.

Heights in the NT family

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

Worth noticing: the NT range’s capacities move far less across roast levels than the convex E-series does — a couple of grams rather than several. Pick by dose, and check the code guide if you want to decode the rest of the suffix.

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 H26 (B702TFH26NT) 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 H26 (B702TFH26NT) for?
It is a 58mm basket, 26mm deep, for 58mm portafilters.
Is the IMS B70 Competition NanoQuartz 2 Cup H26 (B702TFH26NT) pressurized?
No — it is a non-pressurized (single-wall) basket, for freshly ground coffee.
Does the IMS B70 Competition NanoQuartz 2 Cup H26 (B702TFH26NT) 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 H26 (B702TFH26NT) 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.