40 Pack SKU: 1823-54
Single SKU: 1821-54
These 14ml Barrels are the best solution for school and maker projects. Use them to build a micro-hydroponics system, a water filter, and many more engineering activities.
What make them so great? They have holes, pins and a flange for mounting to your projects—making it super quick and easy to assemble your design.
TeacherGeek Barrels and Cylinders are not syringes. Their tip/port will not accept needles. This means that they are not regulated as a medical device (like syringes) and can be used in public school classrooms without issue.
Connect barrels using 1/8in vinyl tubing.