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
Foxx Life Sciences EZLabpure™ Nylon Hydrophilic Membrane Filters, 0.45µm Pore Size, 142mm Diameter Membrane Filter Discs, Non Sterile, 25/PK
EZLabpure™ Nylon Hydrophilic Membrane Filters are engineered for reliable particle retention, sample clarification, and broad chemical compatibility in laboratory applications. These Nylon membrane filter discs provide excellent mechanical strength, consistent flow rates, and dependable performance for aqueous and organic solutions. Available in 0.22 um, 0.45 um, 0.8 um, and 1.2 um pore sizes, and offered in 13 mm, 25 mm, 47 mm, 90 mm, 142 mm, and 293 mm diameters, all variants are supplied non-sterile. All components comply with USP Class VI Standards, ensuring material safety and consistent filtration quality.
The filtration membrane discs are recommended for particle removing filtration for water, aqueous solutions and solvents for analytical determinations such as HPLC, and filtration of these liquids. These filters are hydrophilic and suitable for HPLC sample preparations, sterile filtration of aqueous and solvent solutions, and clarification and particle removal.
Chemglass Life Sciences Fritted Disc, 10mm, Coarse
Fritted Disc, 10mm, Coarse. Porous discs for use in fabrication of special glass apparatus. Fritted glassware is designed for low pressure vacuum filtration or gas flow. The MAX differential pressure should not exceed 15 PSI. Fritted glassware should not be exposed to excessive temperature change or direct exposure to flame due to the fact that it has less resistance to thermal shock than standard borosilicate glassware.
Foxx Life Sciences EZLabpure™ Nylon Hydrophilic Membrane Filters, 1.2µm Pore Size, 13mm Diameter Membrane Filter Discs, Non Sterile, 100/PK
EZLabpure™ Nylon Hydrophilic Membrane Filters are engineered for reliable particle retention, sample clarification, and broad chemical compatibility in laboratory applications. These Nylon membrane filter discs provide excellent mechanical strength, consistent flow rates, and dependable performance for aqueous and organic solutions. Available in 0.22 um, 0.45 um, 0.8 um, and 1.2 um pore sizes, and offered in 13 mm, 25 mm, 47 mm, 90 mm, 142 mm, and 293 mm diameters, all variants are supplied non-sterile. All components comply with USP Class VI Standards, ensuring material safety and consistent filtration quality.
The filtration membrane discs are recommended for particle removing filtration for water, aqueous solutions and solvents for analytical determinations such as HPLC, and filtration of these liquids. These filters are hydrophilic and suitable for HPLC sample preparations, sterile filtration of aqueous and solvent solutions, and clarification and particle removal.
Foxx Life Sciences EZLabpure™ PTFE Hydrophilic Membrane Filters, 0.45µm Pore Size, 47mm Diameter Filtration Membrane Discs, Non Sterile, 50/PK
EZLabpure™ PTFE Hydrophilic Membrane Filters engineered for superior chemical resistance and dependable filtration performance in demanding laboratory environments. Available in both hydrophobic and hydrophilic configurations, these high-quality PTFE membrane filter discs are ideal for air, gas, solvent, and aqueous applications, delivering consistent flow rates and reliable particle retention. Hydrophobic variants are offered in 0.22 um, 0.45 um, and 1.2 um pore sizes, while hydrophilic options are available in 0.22 um and 0.45 um, with diameter choices including 13 mm, 25 mm, 47 mm, 90 mm, and 142 mm. All filters are supplied non-sterile and comply with USP Class VI Standards for safe use in research and analytical environments.
These Filtration Membrane Disc Filters have a durable wide operating temperature range and resistance to the destructive effects of many chemicals. These filters can be used to filter aqueous fluids without prior wetting.
Foxx Life Sciences EZLabpure™ PTFE Hydrophilic Membrane Filters, 0.45µm Pore Size, 90mm Diameter Membrane Filter Discs, Non Sterile, 25/PK
EZLabpure™ PTFE Hydrophilic Membrane Filters engineered for superior chemical resistance and dependable filtration performance in demanding laboratory environments. Available in both hydrophobic and hydrophilic configurations, these high-quality PTFE membrane filter discs are ideal for air, gas, solvent, and aqueous applications, delivering consistent flow rates and reliable particle retention. Hydrophobic variants are offered in 0.22 um, 0.45 um, and 1.2 um pore sizes, while hydrophilic options are available in 0.22 um and 0.45 um, with diameter choices including 13 mm, 25 mm, 47 mm, 90 mm, and 142 mm. All filters are supplied non-sterile and comply with USP Class VI Standards for safe use in research and analytical environments.
These Filtration Membrane Disc Filters have a durable wide operating temperature range and resistance to the destructive effects of many chemicals. These filters can be used to filter aqueous fluids without prior wetting.
Alkali Scientific FLT, DSK, N66 5.0um Pore , 47mm Diameter, 100/pk
Disk filters made from high quality Nylon 66 membrane with a 5.0 µm pore and 47 mm diameter, designed for reliable particle retention and efficient filtration in laboratory workflows. These membrane filters provide excellent chemical compatibility, strong mechanical stability, and consistent flow rates, making them suitable for aqueous solutions, solvents, and general laboratory sample preparation. The uniform pore structure ensures dependable filtration performance and reproducible results in analytical, research, and quality control applications. Ideal for use in microbiology, environmental testing, and routine lab filtration procedures. Supplied as 100 filters per pack, these membranes support convenient handling and dependable filtration performance in professional laboratory environments.
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.
Alkali Scientific ProCycle™ Pre-cut Sealing Membranes, Sterile, Transparent membrane, 10 bags of 10 membranes
RNase, DNase, DNA, and PCR inhibitor free Evaporation rates ≤ 5% Inner packs of 10 membranes PureAmp™ Sealing Membranes are compatible with all standard PCR plates. Membrane options include pierceable aluminum, standard transparent, optically clear sticky adhesive, optically clear pressure-sensitive adhesive, and low-adhesive EZ-peel, all of which are guaranteed to keep evaporation rates below 5%.
Meissner STyLUX Hydrophilic PES Filter
Meissner STyLUX Hydrophilic PES Filter, 47mm Disc, 0.2µm, 12.4cm² EFA, Non-Sterile
Sterlitech Corporation Aluminum Oxide Membrane Filters, 0.2 Micron, 13mm, 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
Tisch Scientific MCE Membrane Filter, 0.8um, 13mm, Nonsterile, 200 Pk
Streamline your sample preparation workflows with the Mixed cellulose (MCE) Membrane Filters, 0.8um, 13mm, Nonsterile, 200pk, constructed to handle high particulate loads while maintaining rapid throughput. Driving this clarification performance is a hydrophilic Mixed cellulose membrane featuring a verified 0.8 pore structure that captures target particulates while minimizing holdup volume. Further enhancing usability, the robust physical structure of the membrane allows for easy handling and placement into filtration hardware without tearing. The result is a filtration solution manufactured in an ISO-certified facility that minimizes distinct interference, providing clean baselines for publication-quality data.
Foxx Life Sciences EZFlow Nylon Hydrophilic Membrane Filters, 0.22um, 90mm Diameter Filter Discs, 25/PK
364-2811-OEM: EZFlow Membrane Disc Filter, 0.22um Nylon, 90mm, 25/pack. EZFlow 13mm, 25mm, 47mm, and 90mm membrane disc filters are used to retain particles or microorganisms by surface capture. The membrane disc filters are available in Nylon or Hydrophobic PTFE with polypropylene support, in 0.2um or 0.45um pore sizes. The Nylon membrane has great chemical resistance, and is ideal for filtering more aggressive solutions such as alcohols and DMSO. The Hydrophobic PTFE membrane is bonded to a polypropylene support. Due to its extreme chemical compatibility, they are ideal for the filtration of solvents and acids, or other aggressive chemicals. All materials comply with USP Class VI Standards and FDA compliances.
Alkali Scientific CellPro™ MCE (Mixed Cellulose Ester) Membrane Filter, 100/Pk, 13 mm, 0.45 μm
CellPro™ MCE (Mixed Cellulose Ester) Membrane Filters are high performance filtration membranes commonly used in laboratory and industrial applications for microbiological analysis, particle monitoring, and air/water testing. These filters are composed of a blend of cellulose acetate and cellulose nitrate, combining the strengths of both materials for reliable and consistent performance. Key Features: High Porosity (up to 80–85%): Ensures fast flow rates and high throughput. Uniform Pore Structure: Provides accurate and consistent retention of microorganisms and particles. Hydrophilic Nature: Eliminates the need for pre wetting with surfactants; ideal for aqueous solutions. Low Extractables: Minimizes contamination risks in sensitive analyses. Smooth, White Surface (or Gridded Options): Makes it easy to visually inspect and count colonies during microbiological testing.
Alkali Scientific ProCycle™ Pre-cut Sealing Membranes, Sterile, qPCR Optical (pressure-sensitive adhesive) ABI™ Type, 10 bags of 10 membranes
RNase, DNase, DNA, and PCR inhibitor free Evaporation rates ≤ 5% Inner packs of 10 membranes PureAmp™ Sealing Membranes are compatible with all standard PCR plates. Membrane options include pierceable aluminum, standard transparent, optically clear sticky adhesive, optically clear pressure-sensitive adhesive, and low-adhesive EZ-peel, all of which are guaranteed to keep evaporation rates below 5%.