Dear respected users:

First please allow us to express our sincere greeting from Biocomma team.

To provide a better user experience, we will upgrade the upper caps of 3 mL Empty AC Columns.

The upgraded luer-inlet upper cap is made of elastic material, making the caps sealing well, easy-cut and connection easier.


  • The progress of update will last for around 1-2 months, both new caps and old caps could be shipped during this time.
  • Please feel free to contact us if there is any problem during the product usage.

We sincerely appreciate all of your kind supports, we always keep working on providing better products and satisfied services.

Best Wishes!

Biocomma Limited

July 5th, 2019

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