Stoppers for test tubes, Ø11 – 12 mm, Ø16 – 17 mm
very tight seal due to 2 sealing rings
available in natural and 4 more colors
fit to test tube: figure 1-4
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.