Plain Reusable Centrifuge Tubes with Screw Caps
![Plain Reusable Centrifuge Tubes with Screw Caps](https://krackeler.com/tt/lg/graphics/0186/jpg/410090-0015.jpg)
Threaded conical centrifuge tube with a PTFE/rubber-lined black phenolic screw cap. Ungraduated. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.