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Coloured, very flexible rings made from silicone for the colour coding of bottles with GL 45 or GL 56 threads.
The ring is simply put over the thread and applied to the neck of the bottle.
Ideal for all corresponding DURAN® laboratory glass bottles and for use on other bottles with a GL 45 or GL 56 thread.
Art. 10083 is a multipack with 16 GL 45 rings, 2 of each in the colours red, orange, yellow, pink, blue, green, white, black.