One end of the fitting is a press-fit connection, while the other end is a detachable female threaded connection, primarily used for connecting pipes of the same nominal diameter with external components that have internal threads. It is commonly used for connections to water meters, ball valves, and gate valves.
| NO. | Size | External Dia.(mm×in.) | Thickness(mm) |
| 1 | 1/2"×Rp1/2 | 18×1/2 | 1.5 |
| 2 | 1/2"×Rp3/4 | 18×3/4 | 1.5 |
| 3 | 3/4"×Rp1/2 | 22×1/2 | 1.5 |
| 4 | 3/4"×Rp3/4 | 22×3/4 | 1.5 |
| 5 | 1"×Rp1 | 28×1 | 1.5 |
| 6 | 1 1/4"×Rp1 1/4 | 35×1 1/4 | 1.5 |
| 7 | 1 1/2"×Rp1 1/2 | 42×1 1/2 | 1.5 |
| 8 | 2"×Rp2 | 54×2 | 1.5 |
