Compatible with most robotic workstations, this polypropylene storage rack can be used with most cell harvesters and leading 8- and 12-channel pipettors. It contains 96 removable polypropylene square tubes in a 8 x 12 configuration, each having a 2.1ml capacity (2ml when capped). Although the tubes are square, the bottom is round to facilitate emptying. For procedures requiring a low surface tension such as protein and nucleic acid work, a special tube (T105-20LST) has been developed using a type of polypropylene specifically designed to avoid potentially harmful lubricants (such as silicone) while minimizing liquid retention. The autoclavable rack and tubes are ideal for storage of blood and other biological samples at temperatures, from -17°C - 2.1mL Square Tubes Only, Non-Sterile, 4800/cs 14-21 Days