Multiple connectors can be freely combined vertically or horizontally using a connector band.
| Model | Name | Outer Diameter of Tube |
| TCS | Standard Straight | Φ 6, Φ 8 |
| TCL | Standard Elbow | |
| TCS-M | Mini Straight | Φ 3, Φ 8 |
| TCL-M | Mini Elbow | |
| CBT | Connector Band | - |
| CBH |
Malaysia