Chemical and corrosion-resistant steel wire racks are coated with heat-cured epoxy. Epoxy coatings are unaffected by organic solvents, salts, weak acids and weak alkalis, will withstand a temperature range of -223°C (-369°F) to 121°C (250°F) and can be autoclaved. Racks have square holes, three decks, a slotted grid bottom and reinforced edges. Blue rack, holds tubes from 20 to 24mm. 40 places in 4 x 10 rows. Overall measurements: 26.3 x 11.6 x 8.3cm (10-3/8 x 4-9/16 x 3-1/4"). 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.