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 Pallflex Emfab™ Air Monitoring Filters - TX40HI20WW, 110 mm (100/pkg)
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Metrigard™ Glass Fiber With Binder, 47 mm (100/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 (Formerly Pall Lab) Pallflex Emfab™ Air Monitoring Filters - TX40HI20WW, 85 mm (100/pkg)
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Pallflex Tissuquartz™ 2500QAT-UP 25MM 100/PK Die Cut
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. 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 Acrodisc Syringe Filters with wwPTFE Membrane - 0.2µm, 13mm, minispike outlet, 100/pk
Acrodisc Syringe Filters with wwPTFE Membrane - 0.2µm, 13mm, minispike outlet, 100/pk
Cytiva Acrodisc Syringe Filters with wwPTFE Membrane - 0.45µm, 13mm, minispike outlet, 100/pk
Acrodisc Syringe Filters with wwPTFE Membrane - 0.45µm, 13mm, minispike outlet, 100/pk
Sterlitech Corporation Nylon Membrane Filters, 0.45 Micron, 47mm, 100/Pk
Nylon membrane disc filters: 0.45 µm pore-size, 47 mm diameter, pack of 100. Hydrophilic, low-extractable, inert, durable material supported by an internal polyester web. Typically used for HPLC, microbiology, medical/clinical, and general filtration.
Tisch Scientific Nylon Membrane Filter, 0.45 µm, 47 mm, Nonsterile, 200 Pack, SF13880
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.
US Plastic Corporation 8.3 oz. Wide Mouth Round HDPE Jars with 53/400 Cap, 364/case
These wide mouth round jars are great for samples and can be used for liquids, pastes, and powders.
SCP Science DigiFILTER 1.0 Micron, 98% Particle Retention, Vacuum-Assisted Filtration, 100/PK
The DigiFILTER 1.0 micron is designed for efficient filtration of wastewater, soil, and other challenging samples, enhancing laboratory productivity by preventing clogging and ensuring sample integrity for trace metal analysis. Its hydrophilic Teflon membrane guarantees 98% particle retention, making it ideal for high-throughput processing. This vacuum-assisted assembly is compatible with 50 mL tubes, providing a reliable solution for clean sample preparation in analytical applications.
Sterlitech Corporation Nylon Membrane Filters, 0.45 Micron, 25mm, 100/Pk
Nylon membrane disc filters: 0.45 µm pore-size, 25 mm diameter, pack of 100. Hydrophilic, low-extractable, inert, durable material supported by an internal polyester web. Typically used for HPLC, microbiology, medical/clinical, and general filtration.
Sterlitech Corporation Polyethersulfone (PES) Membrane Filters, 0.2 Micron, 47mm, 100/Pk
Sterlitech PES (polyethersulfone) membrane filters, 0.2 micron pore size, 47 mm diameter, pack of 100. Hydrophilic, low protein/drug binding, minimal extractables, and broad chemical tolerance; ideal for pharmaceutical, medical, and life science applications.