Made from high quality Schott glass, this is the original Rundkolben (triple offset joints) flask. The most popular and strongest distillation flask of its kind. Accept no imitations, we created it to offer the quality and features you desire. The dimensions and geometry of the joints are original concepts brought to market by Summit Research. We strive to provide the best products for your needs.
Made in USA. 100% Schott glass. Only the best!