PYREX® Volumetric Flasks with [ST] Stopper
Made of PYREX® borosilicate glass.
- Graduation line is sharp and permanent
- Large white block letters make inscriptions easy to read
- Supplied with interchangeable ground glass stoppers
Flasks are designed for those that do not require the precision accuracy of our Class A capacity flasks. Capacity tolerances are twice those specified for Class A volumetric ware.