Spearlab Foam Dewars

The Large M-FD-1400 version of the popular Standard vessel holds 1400 ml. Dimensions of the cylindrical cavity in this vessel are 6.3 inches in diameter by 3.8 inches deep.

The Standard M-FD-800 holds 800 ml of liquid nitrogen, is our most popular model. It replaces a large sized low profile glass Dewar. The foam dewar has superior durability, safety, and thermal insulating properties. The standard vessel shape is circular, with a protruding handle, so that it resembles a large teardrop., as shown in the above photograph. Each bowl comes with a matching foam lid to insulate the contents from ambient air.

Dimensions of the cylindrical cavity in this vessel are 5.8 inches in diameter by 2.8 inches deep, so that it easily holds 800 ml of liquid nitrogen.

The Small M-FD-500  has the same basic size and features as the Standard vessel, but with a smaller diameter cavity. Dimensions of the cylindrical cavity are 4.5 inches in diameter by 2.8 inches deep, so that it easily holds 500 ml of cryogenic liquid.

The Tall M-TD-1800 can be used as a replacement for upright glass or stainless steel Dewars. Originally, this vessel was designed for short-term storage of canes of protein crystallography samples.

Like the standard cryogenic foam dewar, the tall dewar offers durability, safety, and convenience for processing samples, especially when transferring from conventional shipping Dewars. The insulating properties of the Spearlab tall foam dewar are comparable to those of conventional stainless steel and glass Dewars, at a fraction of the cost. This vessel has a 3.5-inch cylindrical cavity, 12.5 inches deep, which gives it a capacity of 1800 ml liquid nitrogen. The outer profile is a tapered octagon, as shown in the photo.

The Mini M-FD-130 is our smallest foam dewar. In the photo below, it is the smaller of the two vessels shown. The cylindrical cavity in this vessel is 2" in diameter by 3.5" deep, so that it easily holds 130 ml and a maximum volume of 175 ml of liquid nitrogen. Perfect for applications that require a small quantity of liquid nitrogen.