Save lab space with stackable Thermo Scientific™ Nalgene™ microcentrifuge Tube Racks. These chemical-resistant racks have molded letters and numbers for easy identification. Thermo Scientific™ ResMer™ manufacturing technology retains its color and performance in harsh lab environments. Racks are useful in a wide temperature range up to 121°C and exhibit good chemical resistance. Application: Useful ina Wide Temperature Range and Exhibits Good Chemical Resistance