Graduated Glass Tubes
Graduated test tubes are an economical and convenient alternative to graduated cylinders.
Use these graduated tubes in place of graduated cylinders and test tubes. They come with the same graduations as the regular cylinders and fit into the same racks as similar sized test tubes.
No Glassware Returns
Glassware cannot be returned for any reason; this is for your safety and ours. It would be prohibitively expensive to test for bacteriological, chemical or radiological agents since there is no way to tell if glass has been contaminated just by looking at it. We would have to throw it away even if you claim to never have opened the package. Call first if you are unsure of what you need.