Description
Product Overview
The Celltreat 229500 suspension culture flask is engineered to meet the rigorous demands of modern cell biology laboratories. Constructed from high‑quality borosilicate glass, the flask offers exceptional chemical resistance and thermal stability, ensuring that it can withstand a wide range of experimental conditions without compromising integrity. Its 25 mL capacity is optimized for suspension cultures, providing enough volume for robust cell growth while remaining compact enough for efficient use of incubator space. The flask comes equipped with a 0.22 μm hydrophobic membrane vent cap, a critical feature that allows for controlled gas exchange while preventing microbial contamination. This vent cap is designed to maintain a sterile environment throughout the culture period, reducing the risk of external contaminants entering the system. Each flask is gamma‑irradiated and sealed in a zip‑closure bag, guaranteeing sterility from the moment it leaves the manufacturing facility. The product is supplied in cases of 200, making it an economical choice for laboratories that require large quantities for high‑throughput screening or routine cell culture workflows.
![[Product front view showing all components]](https://www.oovex.store/wp-content/uploads/2026/08/c4a139e6cf2d4d1bafab9a0678125d73.jpg)
Usage
Designed specifically for suspension cell lines, this flask excels in applications where cells are grown in a free‑floating state, such as hybridoma production, virus propagation, and stem cell expansion. The hydrophobic vent cap facilitates the exchange of oxygen and carbon dioxide, essential gases for cellular metabolism, while the 0.22 μm filter barrier prevents the ingress of airborne microbes. Researchers can confidently use the flask for short‑term batch cultures as well as longer‑term continuous cultures, thanks to its robust construction and reliable sealing mechanism. The sterile packaging eliminates the need for additional sterilization steps, saving valuable time and reducing the potential for handling errors. The flask is compatible with standard laboratory equipment, including orbital shakers, incubators, and autoclave racks, allowing seamless integration into existing workflows. Its clear glass walls enable easy visual monitoring of cell density and morphology without the need to open the container, thereby preserving sterility throughout the experiment.
Why Choose Us
Celltreat Scientific Products has a long-standing reputation for delivering high‑performance laboratory consumables that adhere to strict quality standards. Each suspension culture flask undergoes rigorous testing for dimensional accuracy, leak integrity, and filter performance, ensuring that the product meets or exceeds industry benchmarks. The gamma‑irradiation process used for sterilization is validated to achieve a 10⁶ CFU reduction, providing confidence that the flask is free from viable microorganisms. Our commitment to customer satisfaction extends beyond product delivery; we offer responsive technical support, detailed usage guidelines, and a responsive warranty program that addresses any concerns promptly. By choosing the Celltreat 229500 flask, laboratories benefit from a combination of superior material quality, precise engineering, and a trusted brand that prioritizes reliability and consistency in every batch produced.
Key Features
- High‑quality borosilicate glass ensures chemical resistance and thermal durability for diverse experimental conditions.
- 0.22 μm hydrophobic vent cap provides reliable gas exchange while maintaining a sterile barrier against contaminants.
- Gamma‑irradiated and sealed in zip‑closure bags for guaranteed sterility straight out of the package.
- Compact 25 mL volume optimized for suspension cultures, reducing incubator space requirements.
- Dedicated technical support and warranty service to assist with any product‑related inquiries.
FAQ
What types of cells are best suited for this flask?
The flask is ideal for suspension cell lines such as hybridomas, CHO cells, and stem cells that do not require attachment to a surface. It also works well for virus production and other applications where cells grow freely in the medium.
Can the vent cap be reused after the initial use?
No. The vent cap is designed for single‑use applications to ensure sterility. For subsequent cultures, a new flask with a fresh vent cap should be employed.
Is the flask compatible with standard incubator shelves and shakers?
Yes, the flask’s dimensions conform to common laboratory equipment standards, allowing it to be placed on incubator shelves, orbital shakers, and other standard platforms without modification.
How does the gamma‑irradiation process affect the flask’s performance?
Gamma‑irradiation sterilizes the flask without altering the glass composition or the integrity of the vent cap filter. This ensures that the flask retains its mechanical strength and gas‑exchange capabilities while being free of viable microorganisms.
What is the recommended storage condition for the sealed flasks?
Store the sealed flasks at room temperature, away from direct sunlight and extreme temperature fluctuations. The zip‑closure bags protect the flasks from moisture and dust, preserving sterility until use.





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