Thermo Scientific™ Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with SFCA Membrane Available on GSA/VA Contract for Federal Government customers only.

Lower the number of extractables in your bottle-top filters by switching from standard CA membranes to sterile, disposable bottle top filters with SFCA Membrane.

Manufacturer: Thermo Scientific™ 2913345

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Catalog No. 09-740-22J

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Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter. Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.

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    Pore Size 0.45μm
    Type Bottle Top Filters
    Diameter (Metric) Membrane 75mm
    Diameter (Metric) Outer 75mm
    No. per Case 12
    Membrane SFCA
    Sterile Yes
    Pore Size (Metric) 0.45µm
    Volume 500mL
    No. per Pack 12
    Fits Bottle Neck Size (Metric) 33mm

    Lower the number of extractables in your bottle-top filters by switching from standard cellulose acetate (CA) to Thermo Scientific™ Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with SFCA Membrane. These filters fit Nalgene filter receiver bottles (#455-series) or standard glass media bottles and have surfactant-free cellulose acetate (SFCA) membranes.

    Bottle Top Filters:

    • Marked with catalog number, membrane type, pore size, lot number and expiration date for easy traceability
    • Gamma radiation sterilized and individually bagged for 5-year sterile shelf life
    • Molded-in graduations for quick visualization of sample volume
    • Side-arm with quick-disconnect tubing adapter for easy bottle top changes
    • Non-cytotoxic and non-pyrogenic

    Surfactant-Free Cellulose Acetate Membranes (SFCA)

    • Low protein binding with little or no loss of specific proteins
    • Excellent flow rates
    • No wetting agents to affect sensitive cell culture lines
    • Much lower extractables than standard CA membranes 


    Polystyrene graduated chamber; color-coded collar with cellulosic vent plug side arm and quick-disconnect tubing adapter; 50, 75, or 90mm diameter membranes; bottom screw threads for attachment to bottles with 33 or 45mm neck sizes.

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