The RBF-5L-3N-150mm is 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. Made specifically for Summit 150mm MPD setups SPD-4 MPD HB1 150mmSPD-4 MPD HB2 150mm. 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. The very best quality for your money guaranteed.

Flask O-ring not included (O-ring comes with any of the two heads mentioned above)

Summit recommends all users 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. We are not responsible or liable for loss of subsequent hardware contamination/failure with or without the result of damaged 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-5L-3N-150mm