Kimble® Kontes® Reusable Plain Round Bottom Glass Centrifuge Tubes with Flat Head Standard Taper Stopper

These plain round bottom centrifuge tubes have a flat head standard taper stopper and are ungraduated. The flat head design permits stoppers to be placed on work surfaces without contaminating the ground zone and also facilitates the use of this vessel as a shaking tube. Do not centrifuge with stopper in tube.