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
Azzota Corp MPF PES 47mm 0.80u S 100pk
Microporous Filter PES Diameter 47mm Pore Size 0 80um 100/pk Sterile
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 CN-CA 47mm 0.80u 100pk St
Microporous Filter CN-CA Diameter 47mm Pore Size 0 80um Sterile 100/pk
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
Waters Corp Waters Solvent Filter, PTFE CR, 47 mm, 0.2 μm
The PTFE CR Solvent Filter extracts and filters potent solvents and organics. Featuring a hydrophobic PTFE membrane on a polypropylene support, it's ideal for non-aqueous, organic, highly acidic, or basic samples. HPLC-certified, it ensures low extractables and superior analytical filtering. Verified compatible with typical HPLC solvents, it provides reliable performance for life science, pharmaceutical, R&D, QC, and environmental applications, but is not cleared for clinical use.
- Hydrophobic PTFE membrane: recommended for non-aqueous, organic, acidic, or basic samples.
- HPLC-certified: guarantees low extractables and superior filtering.
- Advanced separation technology: ensures precise pore size for enhanced instrument and column protection.
- Consistent analytical outcomes: provides consistent results across different lots.
Azzota Corp MPF PVDF 47mm 0.45u S 100pk
Microporous Filter PVDF Diameter 47mm Pore Size 45um 100/pk Sterile
Azzota Corp MPF PTFE 47mm 0.22u S 100pk
Microporous Filter PTFE Diameter 47mm Pore Size 0 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
Azzota Corp MPF CN-CA 50mm 0.80u 100pk
Microporous Filter CN-CA Diameter 50mm Pore Size 0 80um 100/pk
Alkali Scientific CellPro™ MCE Membrane Filter with Grid, 47mm, 100/Pk, 0.22 μm
CellPro™ MCE Membrane Filter with Grid, 47mm, 100/Pk, 0.22 μm. Ideal for filtration applications in laboratories, this 47mm membrane filter offers precise pore sizes to effectively filter and separate samples. Used in microbiology and environmental analysis, it provides high-quality filtration for accurate results.
Chemglass Life Sciences Fritted Disc, 20mm, Coarse
Fritted Disc, 20mm, 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 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
Cole-Parmer Spectra/Mesh 148145 Screen Discs, 47 mm, Nylon, 100 µm, pack of 10
There are four material options to choose from. The nylon mesh filters out particles down to 8 µm. These are ideal for finer macrofiltration needs and are suitable with all aqueous solutions. Polypropylene (PP) mesh offers strength and stability, while also being resistant to most acids, alkalies, and alcohols. These screens are autoclavable. The PEEK mesh holds its shape and features superior chemical resistance. These are ideal for general filtration, are resistant to acidic and alkaline solutions, and feature temperature stability up to 250°C. The 304 Stainless Steel woven discs or sheets are ideal for high differential pressure applications as they are durable and feature extra strength.
Ace Glass, Inc. #50 solid nylon plug, 7855-748 FETFE O-ring back seal
#50 solid nylon plug, 7855-748 FETFE O-ring back seal