Filtering flasks, graduated, heavy wall, PYREX®
: Corning
Made of PYREX® borosilicate glass.
- Graduated to show their approximate capacity
- Permanent white enamel graduations and marking spots
- Beaded rim uses a No. 6 rubber stopper
These flasks are blown in special molds, in shapes designed to give maximum mechanical strength. These flasks are marked as 'Filter flasks' to avoid confusion with similar sizes of Erlenmeyer flasks.