8621 Vacuum Sealer Jar - 1900ml (64oz) Airtight Food Storage Container for Kitchen, Pantry, Coffee, Tea, Spices & Dry Goods | BPA-Free Glass Jar with Lid

Dewar vacuum flasks are made of double-walled borosilicate glass, fully silvered, evacuated to 10-5 and covered by a protective mesh. Evacuation tips and flask bottoms are fully coated and enclosed in an aluminum base. Polyethylene lids are included with all flasks. These vacuum lab-grade standard dewars are manufactured for efficient use with liquid nitrogen (LN2) and other liquid gases.

Manufactured for efficient use with liquid nitrogen (LN2) and other liquid gases

Made of double-walled borosilicate glass

Fully silvered