It takes two!

Purchase a Thermo Scientific Micro CL21 or CL21R, receive a rotor for free*

Dual Row Rotor 18 x 2.0/0.5 mL with screw-on lid: For ultimate versatility, accommodate 2.0 and 0.5 ml tubes in a single, unique rotor configuration and eliminate adapters for unparalleled convenience and ease-of-use.

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