Scienceware Switch-Grid Tube Racks

25 possible tube size combinations with one rack!

Each rack comes complete with a set of grids in the size of your choice: five color-coded grid inserts fit 10 to 30 mm dia test tubes. The three tiered design holds each tube securely in place while rubber feet keep the rack from sliding on the benchtop and secure stacking while in storage. Constructed of chemical-resistant polyoxymethylene plastic, the frame and grids are easily cleaned with mild detergent, ethanol or isopropyl alcohol. Autoclavable at 250°F (121°C).