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Duran Ground Glass Joints

DURAN is a brand name for the internationally defined borosilicate glass 3.3 (DIN ISO 3585) produced by the German company DURAN Group GmbH since 2005 under license from the Schott AG, which was the first to develop it and sold it from 1893 until the equity carve-out of the DURAN Group in 2005. Because of its very high resistance to heat and temperature changes, as well as its high mechanical strength and low coefficient of expansion, DURAN, which is similar to Pyrex from Corning, is not only used for laboratory devices (e.g. components of chemical devices, beakers, Erlenmeyer flasks, etc.) but also in cathode ray tubes, transmitting tubes, and speculums.

This glass was developed by Otto Schott in 1887. In 1938 the brand DURAN was subscribed at the Reichspatentamt and registered in 1943

Standard Duran 10/19 Glass Socket

A borosilicate glass socket 10/19 with tube dia 13mm x 1.5mm wall.

5 x Standard Duran 10/19 Glass Sockets

Five borosilicate glass sockets 10/19 with tube dia 13mm x 1.5mm wall. Buying 5 saves you over 10%.

Standard Duran 14/23 Glass Socket

A borosilicate glass socket 14/23 with tube dia 17mm x 1.8mm wall

5 x Standard Duran 14/23 Glass Sockets

Five borosilicate glass sockets 14/23 with tube dia 17mm x 1.8mm wall. Buying 5 saves you over 10%.

Standard Duran 10/19 Glass Cone

A borosilicate glass cones 10/19 with tube dia 8mm x 1.5mm wall

5 x Standard Duran 10/19 Glass Cones

Five borosilicate glass cones 10/19 with tube dia 8mm x 1.5mm wall. Buying 5 saves you over 10%.

Standard Duran 14/23 Glass Cone

A borosilicate glass cone 14/23 with tube dia 13mm x 1.5mm wall

5 x Standard 14/23 Glass Cones

Five borosilicate glass cones 14/23 with tube dia 13mm x 1.5mm wall. Buying 5 saves you over 10%.