The restrained coupling for PE PVC pipe specification for the restraint couping is as following:
| OD | Dimensions | Type of Pipes |
| L1 | ||
| 63 | 232 | PVC;PE |
| 90 | 242 | PVC;PE |
| 110 | 250 | PVC;PE |
| 125 | 254 | PVC;PE |
| 160 | 294 | PVC;PE |
| 180 | 300 | PVC;PE |
| 225 | 321 | PVC;PE |
| 250 | 338 | PVC;PE |
| 280 | 338 | PVC;PE |
| 315 | 348 | PVC;PE |