Perfect for benchtop use or freezer storage, this double-sided polypropylene rack accommodates 0.2ml thin-walled PCR tubes on one side while the opposite side holds 1.5ml to 2.0ml microcentrifuge tubes. 80 wells on each side keep tubes upright in a 5 x 16 array and are numbered for easy sample identification. Twelve rack colors assist in sample organization and quick visual identification. Molded in handles provide a secure grip for transport and a matte side panel accepts tape or direct labeling. Racks can be used for freezer storage down to -80 degree C (-112 degree F) and can be autoclaved at 121 degree C (250 degree F). Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Bel-Art and H-B Instrument brand laboratory supplies include over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons. Custom calibration services, plastic molding, specialty coatings and wire manufacturing are also available. Wilmad-LabGlass brand laboratory glassware complements Bel-Art and H-B Instrument with over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. SP Scienceware is a division of Warminster, PA based SP Industries which also include SP Scientific laboratory, thermal management, and pharmaceutical production equipment and SP Ableware aids for daily living.