| Dia | For
Outer Dia mm |
Lock
Bolts |
| 2½” | 73 – 77 | 8 x 20 |
| 3″ | 88 – 90 | 8 x 20 |
| 4″ | 110 – 114 | 8 x 20 |
| 5″ | 137 – 142 | 6 x 25 |
| 6″ | 164 – 168 | 6 x 25 |
Utility Channels And Accessories
| Dia | For
Outer Dia mm |
Lock
Bolts |
| 2½” | 73 – 77 | 8 x 20 |
| 3″ | 88 – 90 | 8 x 20 |
| 4″ | 110 – 114 | 8 x 20 |
| 5″ | 137 – 142 | 6 x 25 |
| 6″ | 164 – 168 | 6 x 25 |
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