These 25x200mm (1x8") 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 see some examples such as: hanging plant propagation holder, wall mounted spice rack or coffee bean display rack.
Here is a review from one customer about our 25x200mm test tubes in Google Places:
Holly Christensen: Ordered 15 test tubes. Very well packaged, quick delivery times, high quality test tubes that feel great. Thanks for the great service!
|55910R-CS100||Glass Test Tube 25x200mm, Rounded/Rim+Corks, 100 each||100|
|55910R-RS100||Glass Test Tube 25x200mm, Rounded/Rim+Rubber Bungs, 100 each||100|
Exactly what I was looking for, and cheaper than my regular ( not anymore) supplier! Shopping on their website is very easy and fast delivery! Claude
Thanks for the feedback. We don't pad our prices so we can offer "free" shipping-it's the delivered cost to your door that counts!
Found exactly what I needed. Easy transaction and fast delivery. Well packed too. Would not hesitate to order from Indigo in the future.
Thank you for kind words.
Great products and even better customer service. This company is awesome. When you call, there is always someone picking up the phone and that person can solve your issue. No need to be transferred here and there. It's so refreshing and time efficient when you too have a business to run. Thank you and great job everyone at Indigo Instruments.
Much obliged. We've made it a point since 1994 of having people who know their stuff and can answer most questions on the spot.
Just as advertised! Fast shipping and great packaging. Awesome business!
Excellent product and outstanding service every time!
good product. Excellent service.