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The screw-top tubes with O-ring caps by Heathrow Scientific offer safe long term storage. The screw-on polypropylene lids with TPE O-ring lids with TPE O-Ring to create an excellent seal for secure storage. Clear polypropylene tubes provide excellent view of samples. Skirted, self-standing base makes filling and retrieval easy. Ideal for sample processing and storage applications. Feature frosted writing area. Autoclavable.
Specifications: Volume: 2.0mL, Dimensions: OD 13.3 mm closed height 46.7 mm, Noted Graduations: 0.5, 1.0, 1.5, Max RCF Rating: 18,000 x g, Bulk Wrap Sterile: 500/pk, Color: Natural.
bsanderson
2025-06-29 20:52:01
Just what I needed.
David Lubertazzi
2025-06-27 11:42:21
I have bought these a few times over a number of years. They used to be made with black O rings and the tops formed a tight seal. The last order I received was different. There was a white O ring in the caps. I used the tubes as I normally do, thinking they would work fine. Was I ever wrong. Many of the tubes leaked. Looking carefully at the O rings, they do not seem to be made to any reasonable standard. Just a few seem large enough and are properly shaped. The vast majority are either smaller than needed to form a good seal or are deformed and are not uniformly circular. I would never buy these again as I need to be certain the tubes will form a tight seal.
wilma wan
2025-05-28 14:56:56
It arrived on time and its as is described. We needed for lab works.
Juan M Long
2025-04-25 15:05:50
awesome
Nora
2025-04-02 15:50:57
perfect size for micro geocaches
user
2025-03-18 16:10:49
These leaked despite having the o ring in place and ruined all our precious samples.
Hugh Corn
2024-12-23 20:46:24
work perfectly.
Customer
2024-12-13 13:04:49
Tried to use these vials for DNA/tissue storage, but despite having an o-ring the ethanol all leaked out. Samples ruined
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