IMS B70 Competition baskets
B70 is IMS’s 58mm competition line and by far its largest — four ridged M-pattern doubles, five convex doubles, five NanoQuartz-coated doubles and four singles. Every one shares the same Ø70mm border and Ø60mm body, so within the series the only real choice is height, which is to say dose.
The three diameters
Every basket in this series shares them. They are quoted from the manufacturer pages cited on the individual entries below, not hand-entered here.
| Measurement | Figure | What it decides |
|---|---|---|
| Border Ø | 70 mm | Whether the basket seats in the portafilter |
| Body Ø | 60 mm | Whether it drops in at all |
| Tamper Ø | 58/58.4 mm | Which tamper you need |
If those three numbers being different is a surprise, that is the single most useful thing to understand about basket fitment — see why “58mm” isn’t one standard.
Every basket in the series (18)
Single (1 cup)
| Code | Height | Confidence |
|---|---|---|
| B701TH18.5N | 18.5mm | verified |
| B701TH19.5N | 19.5mm | verified |
| B701TH24.5N | 24.5mm | verified |
| B701TH26.5E | 26.5mm | verified |
Competition (2 cup)
| Code | Height | Confidence |
|---|---|---|
| B702TH22.5M | 22.5mm | verified |
| B702TH24.5M | 24.5mm | verified |
| B702TH26.5M | 26.5mm | verified |
| B702TH28.5M | 28.5mm | verified |
Convex
| Code | Height | Confidence |
|---|---|---|
| B702TCH20E | 20mm | verified |
| B702TCH22E | 22mm | verified |
| B702TCH24E | 24mm | verified |
| B702TCH26E | 26mm | verified |
| B702TCH28.5E | 28.5mm | verified |
NanoQuartz (NT)
| Code | Height | Confidence |
|---|---|---|
| B702TFH20NT | 20mm | verified |
| B702TFH22NT | 22mm | verified |
| B702TFH24NT | 24mm | verified |
| B702TFH26NT | 26mm | verified |
| B702TFH28NT | 28mm | verified |
Dose figures vary by roast level and are published per basket rather than per series, so they live on the individual entries — each one quotes the manufacturer’s own capacity table with the date it was read.
Machines this series fits (21)
- Breville Oracle (58mm)
- ECM Estetika (58mm)
- ECM Mechanika MAX II (58mm)
- Flair 58 (58mm)
- La Marzocco GS3 (58mm)
- La Marzocco Linea Micra (58mm)
- La Marzocco Linea Mini (58mm)
- Lelit Bianca (PL162T) (58mm)
- Lelit Elizabeth (PL92T) (58mm)
- Lelit Kate (PL82T) (58mm)
- Lelit MaraX (PL62X) (58mm)
- Lelit Victoria (PL91T) (58mm)
- Rancilio Silvia (58mm)
- Rancilio Silvia Pro (58mm)
- Rancilio Silvia Pro X (58mm)
- Rocket Espresso Appartamento (58mm)
- Rocket Espresso Epica (58mm)
- Rocket Espresso Giotto Fast (58mm)
- Rocket Espresso Mozzafiato Fast (58mm)
- Rocket Espresso Porta Via (58mm)
- Rocket Espresso R Nine One (58mm)
Cross-references follow the manufacturer’s own compatibility list rather than size logic, so a machine of the right diameter is not listed unless the source names it. Sizes covered: 58mm.
Wondering what the code itself means — the digits, the letters, the suffix? See IMS basket codes, decoded.