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Plain Couplings
| Vinidex Code | Nominal Size (mm) | Material | Stiffness (SN) | Carton Quantity |
| 30568 | 150 | PVC | 8 | 8 |
| 30320 | 225 | PVC | 8 | 2 |
| 30321 | 300 | PVC | 8 | 1 |
| 30322 | 375 | PVC | 8 | 1 |
| 30323 | 450 | PP | 8 | 1 |
| 30324 | 525 | PP | 8 | 1 |
| 30325 | 600 | PP | 8 | 1 |