Filtration Membrane Discs
Thin, precut membrane rounds for high-throughput, fast filtration of liquid and gas samples. Gridded and non-gridded discs. Various materials including mixed cellulose ester, polycarbonate, PTFE, nylon, and PVDF. For air monitoring/analytical research.
Sizes
Filter membranes are made in a range of diameters, typically designed to fit a specific holder or manifold.
Materials
Filter membrane can be made from cellulose, mixed cellulose esters (MCE), polyvinylidene fluoride (PVDF), polyethersulfone (PES), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), nylon, polycarbonate (PC), polyester, polyethylene terephthalate (PET), and polypropylene (PP). Other membrane materials include aluminum oxide, gelatin, porcelain, and glass.
Pore Size
The size of membrane pores determines which particles will be retained by the filter. A pore size of 0.2 µm is small enough to remove microbes from solutions; a 0.45 µm ore size can remove larger particulates.
Color and Grids
White membrane filters may be plain or marked with square grids (outlined in black) that can help with enumerating particles. Gridded or plain black membrane filters may be helpful when filtering light-colored particulates.
Sterility
Filter membranes may be pre-sterilized or may be sterilized using ethylene oxide, gamma irradiation, or autoclaves. The need for sterility is determined by the application, which are many and varied:
- Light microscopy samples
- Cytology sample preparation
- Electron microscopy samples
- Air quality and other environmental monitoring
- Water analysis and water quality testing
- Microbiology colony counting and quality control
- Chemotaxis
- Sterile preparation of buffers, tissue culture media, microbiological media, and other biological fluids
MDI Membrane FLTR MDI GCN 47MM .45 EO 100PK
mdi grid marked Cellulose Nitrate membrane filters, 47 mm, 0.45 µm, EO-sterile, 100 PK
Ace Glass, Inc. Replacement glass filter disc for Ace 5801-57 1/4-28 to #15end fitting adapter.
Replacement glass filter disc for Ace 5801-57 1/4-28 to #15end fitting adapter.
Sterlitech Corporation Polyester (PETE) Membrane Filters, 0.4 Micron, 47mm, 100/Pk
Sterlitech polyester track etch (PETE) membrane filters, 0.4 micron pore size, 47 mm diameter, pack of 100. Hydrophilic, solvent resisant film for blood assays, microscopy, and highly caustic samples.
Sterlitech Corporation Nylon Membrane Filters, 5.0 Micron, 90mm, 25/Pk
Nylon Membrane Filters, 5.0 Micron, 90mm, 25/Pk
Foxx Life Sciences EZLabpure™ Cellulose Nitrate CN Hydrophilic Membrane Filters, 0.45µm, 293mm Diameter Filtration Membrane Discs, Non Sterile, 25/PK
EZLabpure™ Cellulose Nitrate CN Hydrophilic Membrane Filters designed for efficient particle retention, sample clarification, and microbiological applications. Featuring high-quality cellulose nitrate membranes, these membrane filter discs deliver consistent flow rates and reliable performance for laboratory filtration. Available in 0.22 um, 0.45 um, 0.8 um pore sizes, and offered in 25 mm, 47 mm, 90 mm, 142 mm, and 293 mm diameters. All membrane filter discs are supplied non-sterile and comply with USP Class VI Standards.
These Filtration Disc Membranes are used for applications involving aqueous solutions. Featuring narrow pore size distribution, these filters ensure improved surface capture and analysis with low levels of extractables, making them a reliable choice for particle counting in liquids and aerosols. These support a wide range of laboratory filtration, microbiological testing, and general sample preparation applications
Foxx Life Sciences EZLabpure™ Cellulose Nitrate CN Hydrophilic Membrane Filters, 0.8µm, 90mm Diameter Membrane Filter Discs, Non Sterile, 25/PK
EZLabpure™ Cellulose Nitrate CN Hydrophilic Membrane Filters designed for efficient particle retention, sample clarification, and microbiological applications. Featuring high-quality cellulose nitrate membranes, these membrane filter discs deliver consistent flow rates and reliable performance for laboratory filtration. Available in 0.22 um, 0.45 um, 0.8 um pore sizes, and offered in 25 mm, 47 mm, 90 mm, 142 mm, and 293 mm diameters. All membrane filter discs are supplied non-sterile and comply with USP Class VI Standards.
These Filtration Disc Membranes are used for applications involving aqueous solutions. Featuring narrow pore size distribution, these filters ensure improved surface capture and analysis with low levels of extractables, making them a reliable choice for particle counting in liquids and aerosols. These support a wide range of laboratory filtration, microbiological testing, and general sample preparation applications
Foxx Life Sciences EZLabpure™ Cellulose Nitrate CN Hydrophilic Membrane Filters, 0.45µm, 142mm Diameter Membrane Filter Discs, Non Sterile, 25/PK
EZLabpure™ Cellulose Nitrate CN Hydrophilic Membrane Filters designed for efficient particle retention, sample clarification, and microbiological applications. Featuring high-quality cellulose nitrate membranes, these membrane filter discs deliver consistent flow rates and reliable performance for laboratory filtration. Available in 0.22 um, 0.45 um, 0.8 um pore sizes, and offered in 25 mm, 47 mm, 90 mm, 142 mm, and 293 mm diameters. All membrane filter discs are supplied non-sterile and comply with USP Class VI Standards.
These Filtration Disc Membranes are used for applications involving aqueous solutions. Featuring narrow pore size distribution, these filters ensure improved surface capture and analysis with low levels of extractables, making them a reliable choice for particle counting in liquids and aerosols. These support a wide range of laboratory filtration, microbiological testing, and general sample preparation applications
Foxx Life Sciences EZLabpure™ CA Hydrophilic Membrane Filters, 0.8µm, 90mm Diameter Membrane Filter Discs, Non Sterile, 25/PK
EZLabpure™ Cellulose Acetate CA Hydrophilic Membrane Filters are designed for efficient particle retention, sample clarification, and routine laboratory filtration of aqueous solutions. Manufactured with high-quality CA membranes, these membrane filter discs provide low protein binding, excellent flow rates, and reliable performance for analytical and research applications. Available in 0.2 um, 0.45 um, and 0.8 um pore sizes, and offered in 25 mm, 47 mm, and 90 mm diameters. All components comply with USP Class VI Standards, ensuring material safety and consistent filtration quality.
These Filtration Membrane Disc Filters combine high flow rates with very low absorption characteristics. These filters are suitable for sterile filtration of culture media, microbe-retentive and particle-removing filtration of nutrient media, water and solutions, and cell harvesting
Hach Company Filter, Membrane, Pore Size 0.45 µm, Diameter 25 mm, 100/pk
For use in a wide-range of laboratory applications, these discs are composed of Mixed-Cellulose Esters and are the industry standard for particulate removal, particulate analysis and clarification of fluids. Diameter: 25mm. Pore Size: 0.45um. 100/PK.
Tisch Scientific NYLON MEMBRANE FILTERS
Tisch nylon membrane filters are naturally hydrophilic, have high non-specific binding properties, and an extractable level of <0.0015 mg/cm^2, they are ideal for HPLC solvent and sample preparation.
Sterlitech Corporation Aluminum Oxide Membrane Filters, 0.02 Micron, 47mm, 10/pk
Aluminum oxide membranes feature uniform, densely-packed honeycomb pore structures that contribute to precise retention and high porosity characteristics.Applications:* HPLC sample and mobile phase filtration* Filtration of aggressive organic solvents* Virus concentration and analysis* Analysis of micro plastic in water* Epifluorescence microscopy* Synthesis of nanostructures (e.g. nanotubes)Features:* Fast filtration, efficient separation and high purity* High number of tightly controlled pores in honeycomb shape* Free of organic extractables and leachables* Minimum adsorption* Transparent when wet
Sterlitech Corporation Polyester (PETE) Drain Disc (Mesh Spacer), 47mm, 100/Pk
These Polyester Drain Discs increase flow rate and throughputs by preventing blockage or "pore blinding" of the capillary pores in screen membranes.
Foxx Life Sciences EZLabpure™ PTFE Hydrophobic Membrane Filters, 0.22µm Pore Size, 47mm Diameter Membrane Filter Discs, Non Sterile, 50/PK
EZLabpure™ PTFE Hydrophobic Membrane Filters are engineered for superior chemical resistance and reliable filtration in laboratory. Available in hydrophobic & hydrophilic configurations, these PTFE membrane filter discs offer consistent flow rates & effective particle retention. Hydrophobic variants are available in 0.22 um, 0.45 um, and 1.2 um pore sizes, while hydrophilic are offered in 0.22 um and 0.45 um, with diameter options 13 mm, 25 mm, 47 mm, 90 mm and 142 mm. All filters are non-sterile and comply with USP Class VI Standards.
These Filtration Membrane Disc Filters are composed of pure PTFE membrane bonded to a polypropylene support, ensuring broad chemical compatibility (pH 1–14) for filtration of solvents, acids, and aggressive chemicals. Due to their hydrophobic nature, pre-wetting with solvents such as ethanol or methanol is required before filtering aqueous solutions.
Tisch Scientific MCE Membrane Filter, 5.0 µm, 47 mm, Nonsterile, 200 Pack, SF14634
Tisch MCE membrane filters are developed from a mixture of cellulose acetate and cellulose nitrate and are one of the most widely used filters in both air monitoring and analytical applications.
IW Tremont Co Inc LabExact Hydrophilic Nylon membrane, NON-STERILE, 0.45 micron, 47mm diameter, pack of 100
LabExact Nylon Membrane is supported with a polyethylene terephthalate (PET) scrim for added support. This scrim is bonded to the nylon using a unique technique with no bonding agent for purity, chemical compatibility and lower extractables. Hydrophilic material eliminates need for wetting agents. Strong protein bonding with high recoveries