Weck Rubber Seal - Large

Large size 100mm matches with the (L) Weck jars. Seals, clamps and jars sold separately.

Large Fits:
776 Barrel
974 Cylindrical
748 Deco
740, 741, 742 & 743 Mold
768, 747, & 769 Quadro
738, 739, 744 & 745 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.