The Beckman Coulter Allegra 21 Benchtop Centrifuge is easy-to-use with quiet operation and features a front control panel. The instrument applications include routine processing such as sample preparations, pelleting, extractions, purifications, concentrations, phase separations, receptor binding, and column centrifugations. The Beckman Coulter Allegra 21 series compact benchtop centrifuge processes many small-volume samples in multiwell plates for concentrating tissue-culture cells, cloning and replicate studies, in-vitro cytoxicity studies, receptor binding, and genetic engineering experimentation.