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