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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.
user
Reviewed in the United States on March 31, 2020
These leaked despite having the o ring in place and ruined all our precious samples.
David Lubertazzi
Reviewed in the United States on February 23, 2019
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.
Customer
Reviewed in the United States on October 11, 2018
Tried to use these vials for DNA/tissue storage, but despite having an o-ring the ethanol all leaked out. Samples ruined
Juan M Long
Reviewed in the United States on August 23, 2016
awesome
wilma wan
Reviewed in the United States on November 1, 2016
It arrived on time and its as is described. We needed for lab works.
bsanderson
Reviewed in the United States on October 27, 2016
Just what I needed.
Hugh Corn
Reviewed in the United States on April 17, 2015
work perfectly.
Nora
Reviewed in the United States on December 7, 2014
perfect size for micro geocaches
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