"GSC International"

Verify gas production in fermentation exercises, gas produced by yeast or other organisms rises into a 5 or 10 ml evolution tube.

For use in the collection and observation of gases produced by fermentation.

Fermentation tubes manufactured from borosilicate glass.

Made from quality flint glass with tapered ends for secure fitting of rubber stoppers or corks.

Long glass gas measuring tubes with closed top and permanent, clearly marked graduations.

Made from high quality borosilicate glass.