Kimax® Plain Round Bottom Reusable Centrifuge Tubes with Flat Head Stopper
Round bottom ungraduated centrifuge tube with a flat head Standard Taper stopper. 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. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.