Foam Small Vessel

Same basic shape as the Standard Vessel but with a smaller diameter cavity: 4.5 inches in diameter by 2.8 inches deep, holding 500 ml.

Spearlab foam dewars are effective, durable vessels for handling liquid nitrogen and cryogenic materials, widely used for x-ray crystallography samples and other cryogenic applications. Unlike conventional glass and stainless steel Dewar flasks that depend on a vacuum layer, Spearlab foam dewars use a fine closed-cell foam for insulation — chemically inert and mechanically durable enough to be exposed directly to liquid nitrogen without leaking or degrading.