Filter Units and Bottletop Filters

Ergonomic, and easy to use

Choose the right filter for your application with the broadest offering of filter units and bottle tops. Our product portfolio includes wide membranes for faster flow and certificate of quality in every case.



Free, on-demand webinar:

The Last Line of Defense: Cell Culture Contamination and Using Filtration as a Final Preventative Measure

Topics Covered:

  • Understanding and protecting against biological contamination
  • Types, detection, sources and reducing risk
  • How to choose the right filter
  • Types of filter membranes and how they work

Filtration Smart Note

Does laboratory filtration of culture media affect cell growth?

Laboratory filtration of culture media does not affect cell growth as long as the correct filter and filter membrane are used.

Read our additional Smart Notes

Cell Culture Promotions

Advancing performance across your cell culture workflow

Cell culture promos

Our extensive Thermo Scientific™ Cell Culture portfolio provides a range of essential equipment, cultureware, sera, media, reagents and services − tailored to deliver the critical tools cell culture researchers depend on every day.

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Nalgene™ Large-Volume FastCap™ Bottle Top Filter with 0.2μm PES Membrane

Catalog #: 298-9020

Filter up to 5L of fluid with this large-volume bottle top filter with a 0.2μm PES membrane. Place on a bottle mouth, apply vacuum and start the filtering process.

Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with PES Membrane

Catalog #: Multiple catalog numbers exist

Perform sterile filtration of cell culture media and serum with Thermo Scientific™ Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with PES Membranes.

Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with SFCA Membrane

Catalog #: Multiple catalog numbers exist

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.

Nalgene™ Rapid-Flow™ Sterile Disposable Filter Units with CN Membrane

Catalog #: Multiple catalog numbers exist

Perform sterile filtration, prefiltration or clarification of buffers and other aqueous solutions when protein binding is not a concern with these filter units.

Nalgene™ Rapid-Flow™ Sterile Disposable Filter Units with Nylon Membrane

Catalog #: Multiple catalog numbers exist

Filter solutions where very low extractables are desired and solutions containing weak solvents with these disposable filter units with nylon membrane.

Nalgene™ Rapid-Flow™ Sterile Disposable Filter Units with PES Membrane

Catalog #: Multiple catalog numbers exist

Increase filtration efficiency with PES membranes and Rapid-Flow design, providing fast flow rates and high throughput while defending against cell culture contamination.

Nalgene™ Rapid-Flow™ Sterile Disposable Filter Units with SFCA Membrane

Catalog #: Multiple catalog numbers exist

Perform vacuum filtration and single-use biological work requiring sterile filtration, prefiltration or clarification of aqueous solutions in the lab or field.

Nalgene™ Rapid-Flow™ Sterile Filter Storage Bottles

Catalog #: Multiple catalog numbers exist

Save time and minimize contamination with these radiation-sterilized filter storage bottles. Excellent as single-use storage containers.