Flasks, pear-shaped
with 2 necks
with 2 necks with conical ground socket, DIN 12383, angled side neck, borosilicate glass 3.3

| Inhalt ml | NS-Hülse Mittelhals | NS-Hülse Seitenhals | Art. Nr. | 
| capacity ml | ST-socket center neck | ST-socket side neck | product code | 
| 25* | 14/23 | 14/23 | 61 216 303 | 
| 50* | 14/23 | 14/23 | 61 216 305 | 
| 50 | 19/26 | 14/23 | 61 216 315 | 
| 100* | 14/23 | 14/23 | 61 216 307 | 
| 100 | 19/26 | 14/23 | 61 216 316 | 
| 250* | 14/23 | 14/23 | 61 216 309 | 
| 250 | 19/26 | 14/23 | 61 216 317 | 
| * in Ergänzung zur DIN / in addition to DIN | |||