Membrane Filters
Membrane filters serve as effective physical barriers that remove solids, viruses, bacteria, and other unwanted molecules. Specialized types are designed for softening, disinfecting, organic removal processing, and water desalination. The filters can be installed in compact, automated, or modular units. These strainers can be used as separators between stacked discs in a single filter holder during serial filtration. Membrane filters are virtually inert to chemical and biological agents, ensuring stability when filtering concentrated acids, alkalis, or oxidizers.
Nylaflo® Membrane Disc Filters, Pall® Life Sciences
Supplier: Cytiva
Useful for a wide range of both aqueous and solvent-based applications. Hydrophilic nylon filters offer excellent chemical compatibility with esters, bases, and alcohols. Not recommended for acids >1N or halogenated solvents.
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Separator Depth Filters, Polypropylene/Polyethylene, Cytiva (Formerly Pall Lab)
Supplier: Cytiva
The Polypropylene/Polyethylene Separator Depth Filters have outstanding wet strength and can be folded or handled the same as laboratory paper. Because of their material of construction, these disc filters are virtually inert to chemical and biological agents.
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Metricel® Black Membrane Disc Filters, Pall® Life Sciences
Supplier: Cytiva
Ideal for the isolation and enumeration of yeast and mold colonies from water and beverages using the Membrane Filter Technique referenced in Standard Methods for the Examination of Water and Wastewater. Dark background provides an excellent contrast for counting opaque colonies and light colored particulate.
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Whatman™ Mixed Cellulose Ester Membranes, Non-Sterile, 0.45 µm
Supplier: Cytiva
Mixed cellulose ester, WME range, circles, gridded. Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.
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Supor® Membrane Disc Filters, Pall® Life Sciences
Supplier: Cytiva
Ideal for biological, pharmaceutical, and sterilizing filtration requirements. Supor® hydrophilic polyethersulfone membranes offer higher fluid flow rates, lower protein binding, lower extractables, and greater strength than other cellulosic (acetate, nitrate) membranes. Provide some of the highest water flow rates and fluid filtration capacities of any sterilizing grade membrane filter. Nonsterile, except for 28147-979, which is gamma-irradiated.
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Whatman™ Sterile Cellulose Nitrate Membrane Filters, Whatman products (Cytiva)
Supplier: Cytiva
Recommended for microbiological culturing and sample preparation, these cellulose nitrate membrane filters offer very narrow pore size distribution and low levels of extractables.
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Whatman™ Mixed Cellulose Ester Membranes, Non-Sterile, 3 µm, Whatman Products (Cytiva)
Supplier: Cytiva
Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.
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Whatman™ Cellulose Nitrate Membranes
Supplier: Cytiva
Cellulose nitrate membranes, circles, plain. Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions.
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Versapor® Membrane Disc Filters, Pall® Life Sciences
Supplier: Cytiva
Ideal for prefiltration of difficult-to-filter solutions and serum. Designed to be used in applications requiring excellent retention properties combined with tensile strengths in excess of 200bar (3000psi).
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Whatman™ Mixed Cellulose Ester Membranes, Non-Sterile, 0.6 µm, Whatman Products (Cytiva)
Supplier: Cytiva
Mixed cellulose ester, WME range, circles, gridded. Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.
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Membrane Filters with Grid, Sartorius
Supplier: SARTORIUS CORPORATION EDI
Hydrophobic cellulose nitrate and cellulose acetate gridded membrane filters for colony count and sterility testing, with outstanding retention rates for microorganisms.
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Membrane Filters with Grid, Sartorius
Supplier: SARTORIUS CORPORATION EDI
Cellulose nitrate hydrophilic, gridded membrane filters for colony counting, particle testing and microscopy, with outstanding recovery rates for microorganisms.
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Whatman™ Regenerated Cellulose Membranes, Circles, Whatman products (Cytiva)
Supplier: Cytiva
Cytiva's Whatman regenerated cellulose membrane filters are microporous cellulose acetate filters made without wetting agents. RC60 offers low extractables and wide compatibility in both organic and aqueous media.
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Whatman™ Mixed Cellulose Ester Membranes, Sterile, 0.45 µm
Supplier: Cytiva
Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.
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PM 2.5 Air Monitoring Membrane, Whatman®
Supplier: Cytiva
High purity, thin PTFE membrane in a sequentially numbered chemically resistant polypropylene support ring. Membrane has low tare mass for accurate gravimetric determinations. The unique thermally stable design eliminates curling, keeping the membrane flat and making the filter robot-friendly.
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Membrane Filters, MicroPlus and ME, Whatman (GE Healthcare)
Supplier: Cytiva
Membranes for microbiological control is developed for microbiological quality control of foods and beverages, pharmaceuticals and cosmetics.
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