Main -> Containers -> Flasks Round bottom flasks, flat bottom flasks • Flat Bottom Flasks, DURAN®, DURAN Group / IDL • Flat Bottom Flasks, DURAN®, DURAN Group / IDL • Round Bottom Flasks, DURAN®, DURAN Group / IDL • Round Bottom Flasks, DURAN®, DURAN Group / IDL • Rounded Bottom Flasks, Quartz Glass, QGT Bad Harzburg • Kjeldahl Flasks, DURAN®, DURAN Group / IDL