Flexible Culturing with a Click: How 2-Position Tubes Simplify Aerobic and Anaerobic Workflows

Whether you're working with aerobic organisms that require oxygen or anaerobic cultures that must be protected from it, UltidentBrand Culture Tubes with 2-Position Caps are designed to simplify your workflow and help you maintain ideal growing conditions.

Each sterile, disposable tube is equipped with a ribbed polyethylene (PE) cap that securely clicks into two distinct positions, giving researchers the flexibility to work across different culturing environments without needing to change tubes.

How it works:

  • First Click (¼ Turn): The cap is secured but not airtight, allowing air circulation inside the tube. This position is ideal for aerobic cultures that require oxygen to thrive.
  • Second Click (½ Turn): A second turn fully seals the cap, creating an airtight, leak-proof environment. This setting is critical for anaerobic cultures, where exposure to oxygen can inhibit growth or kill the organisms.

By adjusting the cap without fully removing it, researchers can minimize handling and reduce the risk of contamination — helping maintain sterility throughout the culturing process.

Streamline your workflow

This easy two-position system saves time and simplifies lab protocols, whether you're setting up aerobic bacterial cultures one day or shifting to anaerobic assays the next. This flexibility reduces prep time, cuts down on inventory, and helps standardize procedures across experiments.

These tubes also feature:

  • Printed graduations for quick volume checks
  • Writable surfaces for clear labeling
  • Convenient 25-tube packs

Whether you're growing different microorganisms or adjusting conditions between experiments, a single format can support your evolving needs.

 Support sterility at every step

UltidentBrand Culture Tubes with 2-Position Caps, Sterile

The ability to adjust the cap without fully removing it helps minimize handling. Unlike traditional caps that require careful loosening or full removal to allow airflow, the 2-position design offers a consistent, controlled way to ventilate or seal the tube. Fewer touchpoints mean a lower risk of contamination, especially when working in controlled environments or sterile hoods.

Each tube is certified RNase, DNase, and Pyrogen-free, with a Sterility Assurance Level (SAL) of 10⁻⁶ making them suitable for sensitive microbiological and molecular applications.

Available in two high-quality plastic options to meet your needs:

Property Polystyrene (PS) Polypropylene (PP)
Appearance Transparent Translucent
Centrifuge Rating Up to 1400 × g Up to 3000 × g
Temperature Range Up to 70°C –190°C to +121°C
Autoclavable Not suitable for autoclaving Yes

 

With UltidentBrand Culture Tubes with 2-Position Caps, flexibility, reliability, and efficiency are built right in  giving you more time to focus on your research and less time worrying about your materials.

Questions or need a quote? Email us at info@ultident.com or reach out through our contact page.