Ready-to-use, syringe-driven units designed for sterilizing and clarifying sterile solutions

Achieve both high sample recovery and fast sample processing. Amicon™ Ultra Centrifugal Filter Units feature regenerated cellulose membranes that are ideal for protein and nucleic acid purification, concentration and desalting. Available in several diameters and molecular weight limits.

Includes a glass fiber pre-filter for difficult to filter liquids. Sartorius™ Minisart™ Plus Syringe Filters are single-use, complete filtration units with a surfactant-free cellulose acetate membrane. Choose from three color-coded pore sizes in sterile or non-sterile options.

Combines fine particle retention with good flow rate. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/C are ideal for the collection of suspended solids in potable water, natural and industrial wastes.

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Circles are widely used standard grade filter papers for routine applications with medium retention and flow rates.

Designed for sterilizing and clarifying sterile solutions. Millex™ Sterile Syringe Filters: MCE Membrane are ready-to-use, syringe-driven units that have never been touched by human hands during filter assembly. Feature 0.22, 0.45 and 0.80µm pore sizes; medical-grade filters available.

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.

Ensure quality control in microbiological filtering. Sartorius™ Gridded Sterile Cellulose Nitrate Membrane Filters, 0.45μm are single-packed membranes with colored grids for colony counting, particle testing and microscopy. The 0.45μm pore size is made in accordance with ISO 7704. Choose from two diameters and quantities in a range of filter/grid color combinations.

Recommended when fast filtration of a gelatinous precipitate for gravimetric analysis is performed on a strongly acidic or alkali solution. Whatman™ Quantitative Filter Paper: Grade 541 Circles  are acid hardened cellulose filters, which reduces ash to an extremely low level.

Recommended when maximum recovery is important. Durapore™ PVDF Membranes: 0.45μ Pore Size provide high flow rates and throughput, low extractables, broad chemical compatibility and low protein binding. Available in diameters ranging from 13mm to 142mm.

Consisting of a membrane-containing filter unit within a polypropylene centrifuge tube. Corning™ Costar™ Spin-X™Centrifuge Tube Filters effectively filters small sample volumes by centrifugation for bacteria removal, particle removal, HPLC sample preparation, removal of cells from media and purification of DNA from agarose and polyacrylamide gels.

Combines high loading capacity with fine particle retention. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/A are ideal for gravimetric determination of airborne particulates, stack sampling and absorption methods of air pollution monitoring.

Served as the basis filter for EPA standard for the toxicity characteristic leaching procedure. Whatman™ Binder-Free Glass Microfiber Filters GF/F Circles offers an extremely high loading capacity and flow rate.

Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Features PES membrane filter for excellent flow speed and high filtrable volume. Sartorius™ Minisart™ High Flow Syringe Filters: Sterile provide sterile filtration, particle removal and ultracleaning. Independent, ready-to-use syringe filters offer flow rates at low inlet pressures allowing for a correspondingly rapid sterile filtration.

Offers increased volume flexibility and performance. Vivaspin™ 20 Centrifugal Concentrator handles up to 20mL in swing bucket rotors and 14mL in fixed angle rotors accepting 50mL centrifuge tubes. Features twin vertical membranes for unparalleled filtration speed and >100-fold concentration.

Retains and absorbs more than Grade 1 filters, with a corresponding increase in filtration time. Whatman™ Qualitative Filter Paper: Grade 2 Circles are used for monitoring specific contaminants in the atmosphere and in soil testing.

For use with disposable white filter cards for sample volumes up to 0.5mL and for use with disposable brown filter cards for sample volumes of 0.4mL or less

Filters fine particles with high wet-strength and high loading capacity. Whatman™ Binder-Free Microfiber Filters, Grade GF/B are particularly useful for liquid clarification and liquid scintillation counting.

Ultraclean or sterilize small volumes of liquids dispensed by syringe

Flexible and durable for easier handling.   GE Healthcare Nylon Membranes are naturally hydrophilic, eliminating need for wetting agents and prewetting when filtering aqueous solutions.

Designed for air monitoring, bioassays, dairy microbiology, particle monitoring and particle removal. MF-Millipore™ Mixed Cellulose Ester Membranes, 0.80μm pore size are available in a range of diameters. Composed of mixed cellulose membrane in black or white with a plain or gridded surface.

Dissolves residue-free in acid solution, which is critical in applications such as Kjeldahl analysis of nitrogen in soil. Whatman Kjeldahl Analysis Weighing Paper, Grade B-2 is thin, lightweight, and low in nitrogen for accurate chemical analysis.

Designed for fast and reliable filtration of small to medium volumes. Sartorius™ Minisart™ High Flow (HF) Syringe Filters are complete, ready-to-connect units with a high-flow PES membrane. These 28mm filters are available in sterile and non-sterile options, with a 0.2 or 0.45µm pore size.

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.

Thermo Scientific™ Pierce™ Protein Concentrators PES are easy-to-use centrifugal devices that provide fast processing and excellent recovery of protein samples.

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

Designed for a wide range of analytical and research applications. MF-Millipore™ Mixed Cellulose Ester Membranes, 5.0μm pore size are available in a range of diameters. Composed of plain, white mixed cellulose membrane.

Composed of cellulose acetate and cellulose nitrate membranes. Whatman™ Mixed Cellulose Ester Membranes - WME Range are characterized by a smoother and more uniform surface than pure nitrocellulose filters.

Used for general microbiological analysis. EZ-Pak™ Membranes are sterile, ready-to-use membranes that eliminate contamination risk and save time.