Single authentic WECK rubber sealing ring (gaskets/washers) for use with WECK Jars only.
Your WECK jar or lid should be marked with a 'Rundrand-Glas' or RR number of 60 indicating the size you need.
| RR Size (mm) |
Inner Width (mm) |
Outer Width (mm) |
| 60 |
54 |
67 |
Also sold in Pack of 10
