Micro Volumetric Flasks with Screw Cap, Class A
![Micro Volumetric Flasks with Screw Cap, Class A](https://krackeler.com/tt/lg/graphics/0186/jpg/297050-0002.jpg)
Class A threaded flask has an open top phenolic cap and a PTFE-lined silicone septum for syringe access. Calibrated to contain. V-shaped bottom provides convenient sample retrieval. Flasks have GPI thread size of 13-425.