These 25x100mm (1x4") glass test tubes, have a nominal outside diameter of 25mm. If you have a hole that is slightly wider than the OD of the tube, an o-ring or elastic band, etc. placed under the rim may fix the problem. You can also see how the o-rings were used to position the test tube in this wall mounted spice rack. Rubber o-rings are generally available in hardware or plumbing supply stores.
Save even more with tube & stopper combos. No one beats our quality & price even with "free" shipping.
Looking for ideas on how to use test tubes? Check out these blogs: What is a Test Tube Used For? Not Just Labs! or Corked Glass Test Tubes for Chemistry Kitchenware. Or, some examples such as a cluster of short test tube flower vases & gourmet food sampler
Here are excerpts from what two customers had to say about our 25x100mm test tubes. Click on their names to see the full review in Google.
Deshana Barua: I brought some glass tubes to display my propagations and replace a broken one. Their prices are very reasonable (it’s impossible to buy just a single piece from online retailers like Amazon, which I’d rather not support anyway)...more
Cathy Waitinas BEST quality, best prices, best customer service for consistent high-quality lab glass and powerful magnets for any projects. Lab, classroom, workshop or crafting projects. Orders of all sizes — just a few or boxes of 50 to 100, their …more
|55908R-CS100||Glass Test Tube 25x100mm, Rounded/Rim+Corks, 100 each||100|
|55908R-RS100||Glass Test Tube 25x100mm, Rounded/Rim+Rubber Bungs, 100 each||100|
Very good service and product, a very rare thing these dighly recommended.
Thanks for the "high 5".
Excellent quality glass tubes. I am using them in wrought metal flower holders. They were a little bigger than what I was replacing but that was a measuring error on my part. Even so, they fit and look nice. Well packaged, safely and promptly delivered.
I received my products in good condition and well packaged. My order came sooner than I expected. Thank you.
As advertised. Shipped promptly. Will use again!
The tubes shipped very quickly! A great deal and great quality.
the test tubes were exactly as I needed for a craft project, they came protected and on time
Great quality, fast shipping! Used these as a bridal shower favour with loose leaf tea. Purchased the corks to go with.
Tubes are used more and more for wedding related applications. Happy we could contribute to your special day.
Perfect for my projects.
Stoppers and tubes work great and are in good condition.
These where exactly what I was looking for. I will be back 4 more!
Exactly what I was looking for. Very, very, pleased. Highly recommend this product!!!