PYREX ® 500 mL Economy Volumetric Flasks, Glass Standard Taper Stopper

These 500 mL PYREX economy 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. The graduation line is sharp and permanent; large white block letters make inscriptions easy to read. Supplied with No. 19 Standard Taper glass stoppers. For replacement stoppers see No. 7650.