"United Scientific Supplies"

Hold a variety of test tubes up to 20 mm.

Resists Corrosion from Chemical Spills.

Ideal for Collecting Outdoor Samples.

Dry up to 50 tubes at once.

Convenient storage for tubes.

These reversible racks can be used for 0.5 or 1.5 ml capacity tubes.

Heat resistance and safe support for glassware.

Chill your vials for almost 3 hours and visual see a color change if it is getting to warm.

Polycarbonate racks provide clear views to tubes.