Filters and Filtration

Increase filtration efficiency. Thermo Scientific™ Nalgene™ Rapid-Flow™ Disposable Filter Units feature the exclusive Rapid-Flow support column design, providing fast flow rates and high throughput. The last line of defense against cell culture contamination—Nalgene Rapid Flow Filter Units and...

Reusable filter units include two membrane support plates: a clear one-piece plate for sterilization applications and a two-piece white plate for analytical applications. Accepts 47 or 50 mm diameter membranes. Two side-arms allow connection to vacuum line.

Increase filtration efficiency. Thermo Scientific™ Nalgene™ Rapid-Flow™ single use bottle tops feature the exclusive Rapid-Flow support column design, providing fast flow rates and high throughput. The last line of defense against cell culture contamination—Nalgene Rapid-Flow bottle tops are the...

Rely on Thermo Scientific™ Nalgene™ Membrane and Prefilter Disks to meet a wide range of laboratory filtration needs. Used in conjunction with either single use or reusable hardware and filter holders, filter disks offer you flexibility and choice to fit many applications.

A filter paper used in analytical works in laboratories with medium filtration velocity.

Recommended for majority of routine applications, this membrane is manufactured under strictly controlled conditions. Whatman™ Type WCN Cellulose Nitrate Membranes narrow pore size distribution for improved surface capture and analysis.

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.

Whatman polyethersulfone (PES) membrane filters from Cytiva’s Life Sciences business are hydrophilic and stable in alkaline pH, making them suitable for biological samples and aqueous applications.

Designed for analysis of non-filterable residue and materials that require a high loading capacity glass microfiber filter. Whatman™ Binder-Free Glass Microfiber Filters, Grade 934-AH Circles are also used in cell harvesting, liquid scintillation, and monitoring pollution.

Moisture test paper for use when drying samples during moisture assessment

Enables high retention of fine particles in chemically harsh conditions. Whatman™ Quantitative Filter Papers: Grade 542 Circles are well suited for use in capturing fine precipitates in applications such as metal determinations and hydroxide collection.

Vacuum filtration systems use a square filter membrane support system that increases filtration rates with printed funnels to identify membrane type and product number. The system consists of a polystyrene filter funnel joined by an adapter ring to a removable polystyrene storage bottle with a...

Strengthened glass filter media by dual lamination with a tough polyester monofilament. Whatman™ HEPA-Vent Filters are ideal for air and gas filtration applications where high retention, dirt-holding capacity and flow rates are required.

Strengthened with chemically stable resin additive. Whatman™ Grade 113 Wet-Strengthened Qualitative Filter Paper Circles boast the fastest flow rate of the qualitative grades. Creped surface promotes ultra high loading capacity.

Used for high precipitate capacity and increased wet strength. Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3 provide double the thickness of Whatman Grade 1.