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
Sterlitech Corporation Polyester (PETE) Membrane Filters, Transparent, 0.4 micron, 12 Micron Thickness, 2E6 pores/cm2, 25mm, 100/pack
Polyester (PETE) Membrane Filters, Transparent, 0.4 micron, 12 Micron Thickness, 2E6 pores/cm2, 25mm, 100/pack
Biodesign Inc of Ny CellMicroSieves Sampler Pack (1 each 200, 100, 50, 25, 8 micron pore sheet at 12 by 12 inches)
CellMicroSieves (TM) filters manufactured by BioDesign Inc of New York allow the separation of multiple cell types using a filter that will not bind cells or proteins. Eleven pore sizes are available in sheets (3 sheets of 12 by 12 inches per package), rolls (2 feet by 3 feet), and 47mm circles (10 per package) that are extremely useful for specific cell type separation, stem cell isolation, hybridoma production, collection of cells from media, and many other uses where a strong non-binding specific sized pore filter is needed. Can be repeatedly steam sterilized retaining its pore size. A pure nylon thread product with no extractable materials that is specifially made for biologial research.
Enterprise Technology Solutions Educational Insights Inc Light Filters,f/Fluorescent/LED,Calming Clouds,4/PK,Multi
Fluorescent and LED lights are staples in many classrooms and offices, but their harsh glare and flickering light can cause eyestrain, headaches and anxiety. Cover your lights with this fabric panel and create a calm and soothing environment perfect for focusing and concentrating. Light Filter attaches easily over standard ceiling fixtures with six sturdy, sewn-in magnets.
Azzota Corp MPF PVDF 47mm 0.80u S 100pk
Microporous Filter PVDF Diameter 47mm Pore Size 80um 100/pk Sterile
Azzota Corp MPF PTFE 47mm 0.80u S 100pk
Microporous Filter PTFE Diameter 47mm Pore Size 0 80um 100/pk Sterile
Azzota Corp MPF PES 47mm 0.45u S 100pk
Microporous Filter PES Diameter 47mm Pore Size 0 45um 100/pk Sterile
Microsolv Technology Corporation Filters, Membrane, 47mm, 0.45um, PVDF. Round, 100/PK.
These high flow, non media migrating, Polyvinylidene Fluoride (PVDF) Advanced Quality (AQ) Brand, Filter Discs can be used with the Mobile Phase Filter Degasser Assembly or any device when membrane filtration is desired.Hydrophilic, they are low protein binding and can be autoclaved at 121⁰C for 30 minutes or EO sterilization without damage to the integrity or performance of the filter. Diameter: 47mm Max Operating Temperature: 80⁰C Bubble Point: 30psi (2.10 kg/cm2) Water Flow Rate: 30ml/min/cm2 @ 10 psi, 27⁰C Thickness: 135um +- 15um Extractables with WFI (water): Within USP Limits Oxidizable Substances: Passes USP Test Pore Size: 0.45 um
Azzota Corp MPF PVDF 47mm 0.22u S 100pk
Microporous Filter PVDF Diameter 47mm Pore Size 22um 100/pk Sterile
Azzota Corp MPF CN-CA 47mm 0.45u 100pk St
Microporous Filter CN-CA Diameter 47mm Pore Size 0 45um Sterile 100/pk
Foxx Life Sciences EZBio Rigid Reservoir for Tangential Flow Filtration (TFF) System, PP, 5L Rectangular Welded Carboy, 83B, VersaCap w/ Rigid tubing 1x Mini TC on 3/8"ID x 1/2"OD, 1x Maxi TC on 9/16"IDx3/4"OD & 1x 3/8"HB w/ Bottom Drain Mini TC, Non-Sterile, 1/CS
The EZBio SUT Rigid Reservoir System is a single-use rigid bioprocess carboy and bottle solution for fluid handling, supporting upstream and downstream processes. It provides a sterile, closed, scalable platform with integrated rigid tubing for secure, kink-free transfer of buffers, media, process fluids.
Available in 1L–115L volumes (PP bottles/carboys), it features VersaCap technology with customizable 2–5 ports (Mini/Maxi TC options) & bottom Tri-Clamp port for efficient drainage. Plug-and-play integration simplifies setup, reduces contamination risk, and speeds workflows.
Features
Made from USP Class VI materials, gamma-sterilizable, autoclavable (15 PSI, 20 min at 121°C)
Rigid dip tube with notch to allow for easy filling and extraction of media
Bottom TC for quick media harvest
Laser marked ports for quick identification
Multi-port cap system
Applications
Bioprocess storage, aseptic transfer
Cell Harvest
Closed collection system
Foxx Life Sciences EZLabpure™ Nylon Hydrophilic Membrane Filters, 1.2 µm Pore Size, 90mm Diameter Filtration Membrane 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.
