Nickel chromium steel, unbreakable, open top. With high-vacuum, permanent insulation. Temperature range -269 to 300 °C. 5 year insulation guarantee.

Cryogenic flasks, Dewar
Cork lids, dewar flasks
Cryogenic flasks, Dewar
Cork lids, dewar flasks
Cryogenic flasks, Dewar
Cork lids, dewar flasks
Cryogenic flasks, Dewar
Cork lids, dewar flasks
Cryogenic flasks, Dewar
Cork lids, dewar flasks
Cryogenic flasks, Dewar
Cork lids, dewar flasks