| GTA1 | Cast Resin Joint 7-22mm OD |
| GTA3 | Cast Resin Joint 14-30mm OD |
| GTA4 | Cast Resin Joint 20-37mm OD |
| GTA5 | Cast Resin Joint 25-42mm OD |
| GTA6 | Cast Resin Joint 33-55mm OD |
| GTA7 | Cast Resin Joint 45-80mm OD |
| GTA8 | Cast Resin Joint 50-90mm OD |
| GTZA0 | Cast Resin Joint 7-16mmOD |
| GTZA3 | Cast Resin Joint 16-25mm |
