This customer's use our giant glass test tubes with planting cuttings of Golden pothos, Giant Leopard Plant & Calathea maranta (prayer plant) for her interior design work.
In Kerri K.'s own words: "Basically I saw something similar on display in another store and really wanted to do this in my home but struggled to find the right size test tube…. (a few test tubes bought elsewhere…) then I found your company and they were PERFECT! Your company was a dream to work with! Emmy husband built the holders for me! I love them!!
These "giant" glass test tubes, 1.5x8" (38x200mm ), are plant & food safe. Extra thick beaded rims making hanging freely a snap.Buy just 1 or save 55% by the case. No one beats our quality & price even with "free" shipping.
38x200mm (1.5x8") giant size test tubes
1.5mm thick walled borosilicate glass
165mL-5.5 fl. oz capacity
50% discount when bought by case
optional tapered corks, see Related Products below or:
38x200mm tubes have rounded bottoms & require support to stand upright
Completely unmarked for branding message
38mm (~1.5"); 200mm (~8")
Tube capacity/volume is ~165 ml/5.5 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 (12)
What customers say in Google Reviews (click on names for full review):
Holly Christensen: ...very well packaged, quick delivery times, high quality test tubes...great service!
Dave Mertz: The large test tubes were perfect for a vase project I wanted to do. The price was right and the shipping was very fast...great service!"
Kerri Kairdolf: Perfect size ...great quality...arrived quickly with no damage.
Deshana Barua...glass tubes to display my propagations...prices are very reasonable (it’s impossible to buy just a single piece from online retailers like Amazon...more
Anna Hovius: ..pleased with...Indigo Instruments - very helpful, very courteous and polite..you handled my very small purchase - like it was a...more.
Lindsay McLennan: Great service! I forgot to order the corks with my tubes... they..shipped out that day...arrived...within 4 days! WOW! Great company to deal with...more
Cathy Waitinas BEST quality... prices...customer service for consistent high-quality lab glass for...Lab, classroom, workshop or crafting projects. Order... just a few or boxes of 50 to 100…more
2024-05-29
Great product, quick delivery, well packaged and, it was a hard to find product until I found Indigo.
— Catherine
2023-05-29
I purchased 38x200mm test tubes to replace rain gauge tube that broke & I could not locate any other option local/online that would fit the - apparently - special size for the rain gauge. While I was disappointed the test tubes did not have incremental markings (for rain measurement), since the test tube fit the rain gauge perfectly, I was able to transfer markings from prior/broken tube to the new test tube. Subsequently, able to use the new test tube for my rain gauge.
— Sue
2022-11-24
These are really high quality and perfect for my propagation wall.
— Erica
2022-10-18
Great quality glass, well packaged and just what I needed. Will definitely be buying from indigo in the future.
— Greg
— Indigo:
Thank you for your kind words. Glad we could get you what you needed.
2021-03-17
Tubes were correctly size and quantity. Also, very well wrapped to protect from breakage.
— Robert
— Indigo:
Good to know, thanks.
2021-03-13
My test tubes arrived quickly and were exactly what I was looking for. Packaged very well for shipping!
— Lauren
— Indigo:
Thanks for letting us know.
2021-02-09
I was shocked by how quick my test tubes arrived! I had such a wonderful experience with customer service after there was an issue with my card & bank. Super happy with the quality, my tubes arrived unharmed and well packaged.
— Haley
— Indigo: Thank for for kind words, glad we could help.
2020-04-21
Just the right test tube with the quality that I was looking for, they look excellent for my project.
— Mahmood
2019-06-18
The test tubes were exactly as described but 3 of the 12 were broken upon arrival. Indigo replaced the broken tubes after I contacted them. Great service!
— Douglas
2019-05-18
Product just as expected. Well packaged, flawless customer experience. Thanks! :)
— Zmonde
2019-04-07
These test tubes are big and just the size I was looking for for a project. Shipped securely in bubble wrap.
— Christine
2018-04-22
These are exactly as stated. Perfect for my project.
— jy
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Thank you for your kind words. Glad we could get you what you needed.