| Approx. bore mm | 15 |
| Description | 'O' ring to fit RM:RF29 |
| Joint size | 29 |
| Max O.D. shank mm | 18 |
| Spherical diameter mm | 29 |
| Pack quantity | 1 |
These PTFE 'O' rings fit onto the end of the glass male ball joint to provide a seal with the inner surface of the female cup joint.