| Chamber | V | r | h | w | d |
| in cm3 | in cm | in cm | in cm | in cm | |
| Roos (PTW-34001) | 0.35 | 0.78 | 0.2 | 0.42 | 0.112 |
| Markus (PTW-23343) | 0.055 | 0.265 | 0.2 | 0.035 | 0.13 |
| Adv. Markus (PTW-34045) | 0.020 | 0.25 | 0.1 | 0.2 | 0.13 |
| NACP-02 | 0.16 | 0.5 | 0.2 | 0.33 | 0.06 |