Economical, charcoal gray, open-cell foam racks have a capacity for 50 tubes

The small rack with 9mm holes is ideal for 1.5 to 2mL microtubes, 10 to 13mm culture tubes, standard cryogenic vials, and 3 to 7mL blood-draw collection tubes. The large rack with 13mm holes is ideal for 16mm culture tubes, 15mL conical tubes, and 10 to 13mL blood-draw collection tubes.

Ideal for storage on benchtops, and in incubators and refrigerators/freezers. Racks will float for use in waterbaths. Racks also can be used to protect valuable, fragile tubes during mailing or shipping. Stackable and autoclavable.