These 32x200mm (1.25x8") glass test tubes, have a nominal outside diameter of 32mm. 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.
Here's what one customer have to say about our big test tubes on Google:
Holly Christensen: Ordered 15 test tubes. Very well packaged, quick delivery times, high quality test tubes that feel great. Thanks for the great service!
32x200mm tubes have rounded bottoms & require support to stand upright
Completely unmarked for decorative use
32mm (~1.5"); 200mm (~8")
Tube capacity/volume is ~125mL/5 fl. oz
Note: Test tube diameter and length is nominal; there can be a variance of as much as +/- 0.5mm. We cannot guarantee they will fit test tube racks or stoppers we don't supply.
Reviews (8)
2022-05-14
Very High Quality! So happy I found these for work. My boss was impressed!
— Luis
2022-01-30
I am SO happy to have found these test tubes from Indigo Instruments. I hadn't heard of them before and had checked the usual large retailers of labware, but couldn't find this size. The price was VERY reasonable, and I appreciated being able to order them in the quantities that I needed, and not in batches of 100/1000/etc. They shipped super quickly and arrived in perfect condition. Couldn't be happier!!
— Allison
— Indigo:
Thanks for the feedback. We don't pad our prices so we can offer "free" shipping. Selling small quantities allows customers like you to fix their problems or test their product ideas without breaking the bank.
2021-04-17
Unfortunately, I ordered the wrong size. (I had taken the lip into account but not the width of the tube itself.) In spite of the order not working out, I found the price to be reasonable and the customer service was excellent. Someone reached out to let me know that it would save money to get two tubes instead of one, and I appreciated that there was a human processing my order who took the time to write me an email.
— Alison
— Indigo:
Thanks for the feedback. We try to review every order in case of product mismatches (tubes & stoppers or test tube racks)?or if there are overlooked cost savings. Glad we could help.
2021-02-18
I stumbled upon Indigo Instruments after searching the world around for this size with close to no luck. They happened to be out of stock, but they checked in almost weekly to give me updates on restock, shipping, and order information. When they were restocked, they shipped my purchase quickly and made sure I knew it was on the way. The glassware was shipped in tip-top shape and I couldn't be more pleased. Their prices are great and their communication is flawless. My only regret is that I didn't find them sooner.
— Kristen
— Indigo: Thank you for kind feedback.
2021-02-09
Super happy with this tube! It's perfect the perfect fit for the project I'm working on. Customer service was phenomenal and the tube was packaged safely for transit.
— Haley
2020-04-21
Just the right test tube with the quality that I was looking for, they look excellent for my project.
— Mahmood
2019-11-28
I used the test tube as an insert for a vase I made from polymer clay. Worked out very well. I also bought a beaker that I have not used yet but hope to make a polymer clay tripod to hold the beaker to be used as a small vase.
— Shar
— Indigo: Another fine use of lab glass for decorative purposes. Thank you for description.
2017-09-07
Great product, always arrives quickly and well packaged even to the other side of the world (Australia).
Thanks for the feedback. We don't pad our prices so we can offer "free" shipping. Selling small quantities allows customers like you to fix their problems or test their product ideas without breaking the bank.