TubeRoller with 10 rollersBenchmark TubeRollers are designed for the gentle, thorough mixing of a variety of containers, including Vacutainers, bottles, test tubes, centrifuge tubes, and roller bottles. Both models feature variable speed control (2 80 rpm), suitable for the broadest range of mixing applications. As the roller mechanism rotates through each complete revolution, the right side of each roller is gently elevated about 0. 5 in (13mm) and returns to the horizontal
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