These durable tube racks are molded in a single, continuous piece of fiberglass-reinforced polyoxymethylene (POM). There are no detachable pieces and no assembly required. Racks are chemical and heat resistance with a temperature range of -40 to 121 °C (-40 to 249.8 °F). Teardrop-shaped openings provide better retention of test tubes.

Available in half and full rack sizes for five different tube diameters and three-color options.