Product Overview
Reusable Regular mouth 70mm Rubber Seal Ring
- BPA Free!
- Reusable
- Dishwasher Safe
- Autoclavable
- For use with Ball brand plastic caps or any of our special filter lids
Without some form of gasket, the mason jar white plastic lids are not airtight. These rubber seals create an airtight seal for REGULAR mouth autoclavable mason jar lids.
