Built Tough 4.5L Dewar Flask With Double Walled Borosilicate Glass, Blue Metal Cryogenic Storage Vessel With Rust Resistant Vent Lid, Heavy Duty Liquid Nitrogen And Dry Ice Carrier For Lab 2 Pack

2 Pack Tough 4.5L Dewar Flask for Liquid Nitrogen Storage
✔️ Double Wall Borosilicate Glass Vacuum Pumps Insulation

This stiff vessel holds cryogens without burning your palms. You will haul liquid nitrogen or dry ice between freezers using a handy loop. The rust resistant shell shrugs off bumps in busy labs or workshop corners. You keep mixes frozen while you swap vials or prep reagents. Each unit drops straight onto your bench for daily rotations. ✅ Four point five liter capacity holds plenty of cryogenic fluids
✅ Blue coated exterior handles tough bench conditions without peeling
✅ Vent lid opens fully so evaporating gas escapes safely out fast
✅ Integrated handle lets you lift filled units without straining back

💡 What makes a sealed dewar flask safer than an open tank for liquid nitrogen? A vacuum insulated vessel reduces heat transfer so you maintain stable temps through every swap cycle. - Pressure relief designs stop dangerous buildup while keeping moisture out completely - Double walled borosilicate shields protect fingers from frostbite during quick loads - Corrosion proof outer shells survive chemical spills without cracking over time

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