Filters are essential in research laboratories and many other industries for removing particulates and creating environments conducive to a wide array of experiments and procedures. The devices come in different forms including in-line filters, paper discs, small capsules, and large ventilation panels. Filters also purify and concentrate the liquids and gases required for testing. For air, this means removing pollution, moisture, and solid airborne particulates; for liquids, this means removing impurities and small contaminants.
Millex® Syringe Filters, PTFE Membrane
Supplier: Merck
Filters for sterilising or clarifying biological solutions. The larger filtration area increases flow rate and throughput. It also makes it easier to filter solutions because it reduces the pressure required to empty the syringe.
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Millex® MCE MF-Millipore™ Membrane Syringe Filters, Sterile
Supplier: Merck
Sterile Millex filter units are available in a larger 33 mm housing with MCE membranes.
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Millex® Syringe Filters, PES Membrane
Supplier: Merck
These syringe filters with PES membrane and PVC housing are suitable for filtration and venting purposes.
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Millex® Syringe Filter Units, Nylon Membrane
Supplier: Merck
HPLC certified filters for the filtration of organic and aqueous solutions in HPLC.
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Application specific filter papers, grade 3459, Whatman™
Supplier: Whatman products (Cytiva)
Creped cellulose filter papers with good retentivity at a relatively high filtration speed. They are used for the clarifying filtration of dried beet pulp extracts or beet juice after the addition of lead acetate for subsequent polarimetric sugar determination. They are specifically designed for the Venema unit (lead acetate method).
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Qualitative filter papers, high-purity
Supplier: Sartorius
These paper grades are used for analytical purposes that require a low ash content. They are essentially used for qualitative analyses.
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Grade 113V qualitative filter papers, fluted, Whatman™
Supplier: Whatman products (Cytiva)
Cytiva's Whatman Grade 113V creped filter paper, for use with a conical filter funnel, offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates.
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Grade 114 qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin.
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Qualitative filter papers, standard grades, grade 593 ¹/₂, Whatman™
Supplier: Whatman products (Cytiva)
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. A standard grade filter paper for fine precipitates.
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Venting filters, AcroVent®
Supplier: Cytiva (Formerly Pall Lab)
Economical, disposable device decreasing contamination risks. Ideal for gas lines for CO₂ incubators.
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Glass microfibre filters without binder, grade GF/C RTU, Whatman™
Supplier: Whatman products (Cytiva)
These borosilicate glass filters are widely used as total suspended solids filters for applications testing both potable water and waste water.
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Quantitative filter papers, hardened low ash grades, grade 54, Whatman™
Supplier: Whatman products (Cytiva)
Whatman Grade 54 hardened low ash quantitative filter paper for Büchner funnel and Hirsch funnel filtration enables fast vacuum suction filtration for recrystallization applications.
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Millex® Syringe Filters, Polyethersulfone
Supplier: Merck
Syringe filters are single-use, membrane-based devices used for the removal of particulate impurities from liquid and gas samples prior to analysis by methods such as HPLC, ion chromatography, gas chromatography, ICP, and dissolution testing. Proper filtration of samples improves the quality and consistency of analytical results and decreases instrument downtime.
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Membrane filters, Millipore Express® PLUS
Supplier: Merck
These PES white membrane filters provides ultrafast filtration of tissue culture media, additives, buffers and other aqueous solutions. This high throughput, low protein-binding membrane is also used in many of our ready-to-use sterile filtration devices.
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Ultrafiltration membrane disc filters, Omega™
Supplier: Cytiva (Formerly Pall Lab)
Replacement membranes for other stirred cell systems. Used for concentration, fractionation, purification, buffer exchange, or desalting of protein, cell broths, and other biomolecules. Discs can be washed and reused.
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Cartridge for deioniser, Pure Aqua Service
Supplier: Binder
Filter cartridge, Type: Replacement cartridge
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Qualitative filter papers, Grade 598 ½, Whatman™
Supplier: Whatman products (Cytiva)
A thick prepleated filter paper with high loading capacity. Combines medium retention with medium-fast to quick filtration speed.
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Membrane filters, Mitex™
Supplier: Merck
Mitex™ PTFE hydrophobic membranes are unaffected by almost all liquids, including organic solvents, concentrated acids and bases, propellants, and cryogenic fluids. They are unbacked, but easy to handle, combining the convenience of a backed membrane with the versatility of a pure PTFE membrane.
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Syringe filters, Minisart® PES
Supplier: Sartorius
Minisart® PES with polyethersulfone (PES) is optimal for highest flow rates and a pH of 2 - 13. Type 1776D with a pore size of 0,22 µm can be used for sterile filtration and has a male Luer slip outlet. Version ACK is individually packed and sterilised by ethylene oxide (EO).
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Qualitative filter papers, grade 202, Whatman™
Supplier: Whatman products (Cytiva)
A general qualitative filter with creped surface. Faster than grade 201 and retains large crystalline coarse particles. Widely used in industrial laboratories and students laboratories for routine filtration.
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Application specific filter papers, grade 0790 ½, Whatman™
Supplier: Whatman products (Cytiva)
Acid washed cellulose filter paper with ash content of approximately 0,01%, low magnesium, for the determination of trace elements (Mg, Mn, Co, Cu, Mo, B).
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Avantor® ACE®, HPLC Precolumn Filters
Supplier: Avantor
These precolumn filters with PEEK body and stainless steel frit provide protection for analytical and microbore columns. They connect directly to the column without the need for an additional holder.
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Millex® Syringe Filter Units, Hydrophilic PTFE Membrane
Supplier: Merck
HPLC certified filters for the filtration of organic and aqueous solutions in HPLC.
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Millex® Automation-Compatible Filter Units, with Durapore (PVDF) Membrane
Supplier: Merck
Automation compatible filter units are specially designed to provide efficient filtration for dissolution and other automated sample preparation applications.
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Quantitative filter papers, hardened low ash grades, grade 52, Whatman™
Supplier: Whatman products (Cytiva)
Cytiva's Whatman Grade 52 is a general-purpose filter paper for quantitative analysis in Büchner funnel and other vacuum filtrations. The acid-hardened surface and low ash content enable efficient precipitate recovery.
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Whatman™ Grade 5V Qualitative Filter Papers, Fluted
Supplier: Whatman products (Cytiva)
Whatman Grade 5V fine particle filter retains particles as small as 2,5 µm for qualitative analysis
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Millex® Glass Fiber Syringe Filter
Supplier: Merck
A 50 mm diameter non-sterile syringe filter with a 2 µm pore size glass fiber membrane.
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Membrane filters, Omnipore™
Supplier: Merck
These white Omnipore™ membranes are hydrophilic, PTFE compatible with virually all solvents, acids and alkaline solutions. They can be used for filtration of aqueous solutions, clarifying acids and alkaline solution.
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Degassing Filters
Supplier: ROBU GLASFILTER
ROBU® degassing filter with integrated VitraPOR® filter ensures efficient solvent degassing with inert gases, combined with reliable filtration. Ideal for chromatography and analytical applications, it offers high chemical and thermal resistance.
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Grade 2589 C filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
Thick filter with medium to slow filtration speed, high wet strength, and good retention for smaller particles.