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.