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Your cart is empty.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.
Shyam Pahari
Reviewed in the United States on July 21, 2018
It’s not original from manufacturers
jp12345
Reviewed in the United States on January 3, 2017
Evaporated to quickly
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