Description
Product Overview
The CELLTREAT 250mL Bottletop Lab Filter is engineered with a Polyethersulfone (PES) membrane, delivering high flow rates and low protein binding for efficient laboratory filtrations. Available in two pore sizes—0.22μm and 0.45μm—this filter system is packaged sterile through gamma irradiation, ensuring it remains contamination-free until use. Key specifications include dimensions of 17.3 x 14.5 x 9.6 inches and a lightweight design at 8 ounces, making it easy to handle in various lab settings. Manufactured by CELLTREAT Scientific Products, this filter is ideal for applications requiring precise particle removal and sterile conditions, backed by a model number of 229706 and high customer satisfaction.

Usage
This Bottletop Lab Filter is designed for use in research laboratories, pharmaceutical development, and biotechnological processes where sterile filtration is critical. It is commonly employed in sample preparation, media sterilization, and buffer filtration to remove particulates and microorganisms. Target users include scientists, lab technicians, and industrial professionals working in environments that demand high purity and reliability, such as cell culture, drug formulation, and quality control testing. Its compatibility with standard bottletop dispensers allows for seamless integration into existing workflows, enhancing efficiency in both academic and commercial labs.
Why Choose Us
CELLTREAT Scientific Products stands out for its commitment to quality and innovation, offering filters that combine advanced PES membrane technology with rigorous sterilization standards. The gamma-irradiated packaging ensures product integrity, reducing the risk of contamination and saving time in sterile setups. Competitive advantages include consistent performance across pore sizes, low binding properties that preserve sample integrity, and a design optimized for high-throughput applications. Trusted by professionals worldwide, CELLTREAT filters provide dependable results, supported by a track record of reliability and positive user feedback.
Key Features
- Polyethersulfone (PES) membrane for high flow rates and minimal protein binding
- Available in 0.22μm and 0.45μm pore sizes to suit various filtration needs
- Sterile packaging via gamma irradiation, ensuring ready-to-use convenience
- Compact 250mL capacity ideal for small to medium volume applications
- Durable construction with precise dimensions for easy handling and compatibility
FAQ
What is the shelf life of this filter?
The filter remains effective indefinitely if the sterile packaging is intact, but it is recommended to use it within standard laboratory guidelines to ensure optimal performance.
Can I autoclave this filter for reuse?
No, this filter is designed for single-use only to maintain sterility and prevent cross-contamination, as autoclaving may compromise the membrane integrity.
What applications is the 0.22μm pore size best for?
The 0.22μm pore size is ideal for sterilizing solutions by removing bacteria and fine particulates, commonly used in cell culture media and critical bioprocessing steps.
Is this filter compatible with all bottletop dispensers?
Yes, it is designed to fit standard bottletop dispensers, but always verify compatibility with your specific equipment to ensure a secure connection.
How does the PES membrane benefit filtration?
The PES membrane offers high flow rates, low binding of proteins and biomolecules, and excellent chemical resistance, making it suitable for sensitive biological samples.








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