| mm x inch |
| 20 × 1/2″ |
| 25 × 3/4″ |
| 32 × 1″ |
| 40 × 1.1/4″ |
| 50 × 1.1/2″ |
| 63 × 2″ |
| 75 × 2.1/2″ |
| 90 × 3″ |
| 110 × 4″ |

Hydro Dynamic Pipe Engineering is a UAE-based manufacturer specializing in HDPE pipes, fittings, custom fabrication, road safety products, marine solutions, and engineered plastic products for infrastructure and industrial projects throughout the GCC.