lab-grade standard dewars are manufactured for efficient use with liquid
nitrogen (LN2) and other liquid gases.
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. Replacement lids are also available; contact us for more