Made from high quality Schott glass, this is the original Rundkolben (double offset joints) RBF-5000-2N-55 boiling 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!

Summit recommends all users of any and all glassware to operate inside a ventilated fume hood with sufficient blast shields to prevent injury in case of fatigued glass failure. Summit is not responsible or liable for the result of any failures from use, and/or loss of subsequent hardware contamination/failure with or without the result of material loss or damaged caused to surroundings. By purchasing our premiere lines of laboratory glassware the user is responsible to operate in the recommended environment safely. We recommend all users to operate in a legal and licensed facility where safety is the number 1 goal. RBF-5000-2N-55