Corning® Pyrex® Economy Volumetric Flasks with ST Stopper
By Corning![Corning® Pyrex® Economy Volumetric Flasks with ST Stopper](https://krackeler.com/tt/lg/graphics/0001/jpg/5641-sm.jpg)
These Pyrex® economy flasks are designed for those that do not require the precision accuracy of Class A capacity flasks. Capacity tolerances are twice those specified for Class A volumetric ware. The graduation line is sharp and permanent; large white block letters make inscriptions easy to read. Supplied with ST glass stoppers. For replacement stoppers see Cat.No. 1-7650.