Dilute or take off concentrate using one rack. The 0.2mL tube wells oriented in standard 96-well format. Use with PCR transfer trays. Rotate rack to customize for your application. Rotate to work with ninety-six 0.2mL tubes and forty-eight 0.5mL tubes. Turn a module and work with ninety-six 0.2mL tubes and forty-eight 1.5mL tubes. Flip rack and work with forty-eight 0.5mL tubes and forty-eight 1.5mL tubes. Or turn a module and work with a total of ninety-six 1.5mL tubes. Tapered wells securely suspend tubes upright. Makes tube removal easy. Quickly identify tubes with imprinted alphanumeric system. Autoclavable. Measures 296 x 118 x 34mm.