One end is a press-fit connection, and the other end is an extended straight pipe. This is used during conduit installation at junctions or when making turns at wall corners, particularly in situations where space is limited or the distance makes press-fitting operations inconvenient.
| NO. | Size | External Dia.(mm) | Thickness(mm) |
| 1 | 1/2'' | 18 | 1.5 |
| 2 | 3/4'' | 22 | 1.5 |
| 3 | 1'' | 28 | 1.5 |
| 4 | 1 1/4'' | 35 | 1.5 |
| 5 | 1 1/2'' | 42 | 1.5 |
| 6 | 2'' | 54 | 1.5 |
| 7 | 2 1/2'' | 76.1 | 2 |
| 8 | 3'' | 88.9 | 2 |
