Flask Round Bottom, Three Neck, "GWL", side necks at parallel.
| Cat. No. | Capacity ml. | Center Socket | Side Socket |
| GWL572/1 | 100 | 24/29 | 14/23 |
| GWL572/2 | 250 | 24/29 | 14/23 |
| GWL572/2A | 250 | 24/29 | 19/26 |
| GWL572/3 | 500 | 24/29 | 14/23 |
| GWL572/3A | 500 | 24/29 | 19/26 |
| GWL572/4 | 1000 | 24/29 | 14/23 |
| GWL572/4A | 1000 | 24/29 | 19/26 |
| GWL572/5 | 1000 | 34/35 | 19/26 |
| GWL572/6 | 2000 | 24/29 | 19/26 |
| GWL572/7 | 2000 | 34/35 | 19/26 |
| GWL572/8 | 2000 | 34/35 | 24/29 |
| GWL572/9 | 3000 | 34/35 | 19/26 |
| GWL572/9A | 3000 | 34/35 | 24/29 |
| GWL572/10 | 5000 | 34/35 | 19/26 |
| GWL572/10A | 5000 | 40/38 | 19/26 |
| GWL572/10B | 5000 | 50/42 | 19/26 |
| GWL572/10C | 5000 | 55/44 | 19/26 |
| GWL572/10D | 5000 | 34/35 | 24/29 |
| GWL572/10E | 5000 | 40/38 | 24/29 |
| GWL572/10F | 5000 | 50/42 | 24/29 |
| GWL572/10G | 5000 | 55/44 | 24/29 |
| GWL572/11A | 10000 | 34/35 | 19/26 |
| GWL572/11B | 10000 | 40/38 | 19/26 |
| GWL572/11C | 10000 | 50/42 | 19/26 |
| GWL572/11D | 10000 | 55/44 | 19/26 |
| GWL572/11E | 10000 | 34/35 | 24/29 |
| GWL572/11F | 10000 | 40/38 | 24/29 |
| GWL572/11G | 10000 | 50/42 | 24/29 |
| GWL572/11H | 10000 | 55/44 | 24/29 |
| GWL572/12A | 20000 | 34/35 | 19/26 |
| GWL572/12B | 20000 | 40/38 | 19/26 |
| GWL572/12C | 20000 | 50/42 | 19/26 |
| GWL572/12D | 20000 | 55/44 | 19/26 |
| GWL572/12E | 20000 | 34/35 | 19/26 |
| GWL572/12F | 20000 | 34/35 | 24/29 |
| GWL572/12G | 20000 | 40/38 | 24/29 |
| GWL572/12H | 20000 | 50/42 | 24/29 |
| GWL572/12 I | 20000 | 55/44 | 24/29 |
