Manufacturer Model No. 50003000
The Mason Jar Freshkeeper, paired with your Oliso Vacuum Sealer, creates an airtight seal that extends the life of your jams, jellies and other home-canned goods. Does not replace heat or pressure canning and sterilization.
Features
Reseals: Airtight resealing to prolong the life of jams, jellies and home-canned goods.