Weck Rubber Seal - Extra Small

Extra Small size 40mm matches with the (S) Weck jars. Seals, clamps and jars sold separately.

Extra Small Fits:
789 Mini Cylindrical
757 Mini Deli
756 Mini Mold
788 Mini Tulip

Our rubber rings are made of natural rubber, so if they come in contact with an oil-based substance, they will stretch out.

We recommend storing them in a dry, dark area, and hand washing them to avoid dry rot caused by the bleach in the dishwasher detergent. We also recommend wiping the rim of the jar before sealing when using it with an oil-based substance.