| British Type Double Coupler | |
| Size(mm) | Weight(kg) |
| 48.3 | 1.00 |
| Non-SlipBritish Type Double Coupler | |
| Size(mm) | Weight(kg) |
| 48.3 | 1.05 |
| Australia Forged Double Coupler | |
| Size(mm) | Weight(kg) |
| 48.3 | 1.00 |
| Pressed British Type Double Coupler | |
| Size(mm) | Weight(kg) |
| 48.3 | 0.80 |
| German Type Double Coupler | |
| Size(mm) | Weight(kg) |
| 48.3 | 1.30 |
| Pressed Italian Type Double Coupler | |
| Size(mm) | Weight(kg) |
| 48.3 | 1.40 |
