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
Cytiva Supor Membrane, 0.45 µm, 47 mm, White, Gridded, Gamma Irradiated, Bulk w/ Parchment Separators (200/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Supor 450 Membrane Disc Filters, 0.45 m - 90 mm, plain (100/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Supor 450 Membrane Disc Filters, 0.45 m - 50 mm, plain (100/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Supor 100 Membrane Disc Filters, 0.1 m - 142 mm, tabbed (25/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Versapor Acrylic Copolymer 450 Membrane Disc Filter, 0.45 µm - 293 mm (25/pkg)
Ideal for prefiltration of difficult-to-filter solutions and serum.-For prefiltration-Excellent retention-Acrylic copolymerDesigned to be used in applications requiring excellent retention properties combined with tensile strengths in excess of 200 bar (3000 psi).Filter membrane is made of acrylic copolymer on a nonwoven support. Strong, flexible, and nonshedding, both dry and wet. Delivers high flow rates at low differential pressures. Can be used as a prefilter to replace glass fiber filters. UV or gamma sterilizable. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Metricel Black Membrane, 0.45 µm, 47 mm, Black, Gridded, Gamma Irradiated, Bulk w/ Parchment Separators (200/pkg)
Contrasting Membrane for Microbiological Analysis-Dark background provides excellent contrast for counting opaque colonies in microbiology labs-Exclusive dot grid pattern does not enhance or inhibit colony growth-Certified for use in the Membrane Filter (MF) Technique as described in Standard Methods for the Examination of Water and Wastewater, current edition-Sharp contrast between black membrane and white grid line provides guidance while viewing and counting-Available non-sterile or in individual gamma-irradiated packs (S-packs) for critical applications This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) GLA-5000 PVC Membrane Disc Filters - 5 m, 47 mm (100/pkg)
Inherently Low Ash Membrane Ideally Suited for Multiple NIOSH Analytical Methods-Assures gravimetric stability with low moisture pick-up and low tare weight.-Low ash. Provides interference-free silica determinations.-5 m pore size meets NIOSH and OSHA requirements.-25 and 37 mm sizes are ideal for use in Pall Air Monitoring Cassettes. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Versapor Acrylic Copolymer 5000 Membrane Disc Filter, 5 m - 47 mm (100/pkg)
Ideal for prefiltration of difficult-to-filter solutions and serum.-For prefiltration-Excellent retention-Acrylic copolymerDesigned to be used in applications requiring excellent retention properties combined with tensile strengths in excess of 200 bar (3000 psi).Filter membrane is made of acrylic copolymer on a nonwoven support. Strong, flexible, and nonshedding, both dry and wet. Delivers high flow rates at low differential pressures. Can be used as a prefilter to replace glass fiber filters. UV or gamma sterilizable. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva GLA-5000 PVC Membrane Disc Filters - 5 µm, 37 mm (100/pkg)
Inherently Low Ash Membrane Ideally Suited for Multiple NIOSH Analytical Methods-Assures gravimetric stability with low moisture pick-up and low tare weight.-Low ash. Provides interference-free silica determinations.-5 μm pore size meets NIOSH and OSHA requirements.-25 and 37 mm sizes are ideal for use in Pall Air Monitoring Cassettes. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Supor 800 Membrane Disc Filters, 0.8 m - 293 mm, no tab (25/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) A/B Glass Fiber Filter, 142 mm (25/pkg)
Superior Grade Filters for a Variety of Biological and Environmental Methods-Type A/E meets the requirements for suspended solids testing, as described in Standard Methods for the Examination of Water and Wastewater, current edition.-Reduces filtration costs and premature clogging when filtering difficult-to-filter or highly contaminated solutions.-Extends filter life and reduces final filter changes with high capacity prefilters.-Eliminates sample contamination. Binder-free borosilicate glass fiber has no added extractables.-Filters a wide range of particulate loads and viscous solutions with a selection of filter thicknesses from which to choose.-Filters with binder offer excellent wet strength for easy handling and filter integrity. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva GN Metricel MCE Membrane Disc Filters - 25 mm, grid (100/pkg)
GN Metricel MCE Membrane Disc Filters - 25 mm, grid (100/pkg) Material:Hydrophilic mixed cellulose esters; Maximum Operating Temperature (Metric)74 °C; Typical Filter Weight (Metric) 4 mg/cm²; Water Flow Rate65 mL/min/cm²
Cytiva (Formerly Pall Lab) Nylaflo™ Nylon Membrane Disc Filter - 0.2 m, 90 mm (100/pkg)
A Highly Versatile Laboratory Membrane Filter-Excellent chemical compatibility with esters, bases, and alcohols-Naturally hydrophilic-Available in 0.2 and 0.45 m pore sizes, in diameters ranging from 13 to 142 mm-HPLC certified. Provides assurance that the filter will not add artifacts to your analysis This product is not approved for use in medical, clinical, surgical or other patient applications.