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Do not base your order on the picture presented.
Features of the LW Scientific M24 24-place Hematocrit Centrifuge:
This unit is designed for flexibility and ease of use in the laboratory or elsewhere. It spins 24 standard 75mm capillary tubes at 12,000 rpms. A handy microhematocrit reader is provided with each unit. The readerdisk allows for reading the tubes directly on the rotor without picking them up.