These culture tubes from Corning are supplied with deep 18-415 GPI threaded phenolic caps that will facilitate handling and sealing after autoclaving. Caps are manufactured from a special formula, which can withstand high temperature and steam in autoclaving. Caps have white rubber liner. The tube have a white enamel marking point on the surface. Tubes with 10 different sizes are available.
Specification
Material: borosilicate glass Color: clear Thread size: 18-415 O.D. × L: 20 mm × 125 mm