Laboratory bottle DURAN, NS29/32Laboratory bottle DURAN, NS29 32 mm with ground neck, 1000 ml, clear glass round, with ground neck joint DURAN Glass from the German manufacturer Schott for the highest requirements in the laboratory Screw caps with GL45 or GLS80 threads Made of clear or amber glass Available as round or square bottles All common sizes from 250 ml to 10000 ml volume Optionally with Protect coating or wide neck opening