This 1250mm length is used to extend the length of the Rigid98 Tube to the required installation length.
| HEIGHT | THROAT SIZE (Dia.) | CODE |
| 1250mm (49") | 343mm (13.5") | 343-AP-R98-1250 |
| 1250mm (49") | 457mm (18") | 457-AP-R98-1250 |
| 1250mm (49") | 535mm (21") | 535-AP-R98-1250 |
