Filtration Membrane Discs

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
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Filtered Search Results

Fisherbrand™ PTFE Filter Membranes
Fisherbrand™ PTFE membrane is hydrophobic filter made of polytetra-fluorethylene laminated with PP layer.

Thickness (Metric) | 0.16 mm |
---|---|
Wettability | Yes |
Type | Plain Disc |
Color | White |
Quantity | 100 Pack |
Material | PTFE |
Hydrophobicity | Hydrophobic |
For Use With (Application) | Sterilizing filtration of gas samples, clarification and filtration of pure solvents, aerosol samplings, filtration of strong Acids and chemical aggressive solutions, venting applications (hospital air conditioning, tank fermentation in microelectronic) |
Sartorius Cellulose Acetate Membrane Filters
Combines high flow rates and thermal stability with very low adsorption characteristics. Sartorius Cellulose Acetate Membrane Filters are excellently suited for use in pressure filtration devices. Non-sterile filters in a variety of diameters and pore sizes are bulk-packed to save money and space.

Thickness (Metric) | 120 μm |
---|---|
Disposable | Single-use |
Type | Membrane Filter |
Format | Disc |
Material (Membrane) | Cellulose Acetate |
Color | White |
Material | Cellulose Acetate |
Hydrophobicity | Hydrophilic |
For Use With (Application) | For use in pressure filtration devices; Sterile filtration of solution. |
Autoclavable | Autoclavable |
Sterility | Non-sterile |
MilliporeSigma™ Omnipore™ Membrane Filters, 0.2 μm
Hydrophilic PTFE polymer membrane filter compatible with virtually all solvents, acids, and alkaline solutions. Omnipore™ Membrane Filters are biologically and chemically inert.
Pore Size | 0.2 μm |
---|---|
Flow Rate | >2.6 mL/min x cm2 |
Wettability | Hydrophilic |
Type | Filter Membranes |
Color | White |
No. per Case | 100Pack |
Quantity | 100/Pk. |
Material | PTFE |
Filter Type | Screen Filter |
Hydrophobicity | Hydrophilic |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Sartorius PTFE (Polytetrafluorethylene) Membrane Filters
Filter air and gasses, even at low differential pressures. Sartorius PTFE (Polytetrafluorethylene) Membrane Filters are permanently hydrophobic with low adsorption and excellent chemical compatibility. Choose from four pore sizes in a variety of diameters.
Disposable | Single-use |
---|---|
Type | Membrane Filter |
Material (Membrane) | PTFE |
Color | White |
Material | PTFE |
Filter Type | Membrane Filter |
Hydrophobicity | Hydrophobic |
For Use With (Application) | Air/gas-filtration |
Autoclavable | Autoclavable |
Merck Fluoropore™ Membrane Filters, 0.22 μm
Hydrophobic membrane with laminated backing for easier handling
Pore Size | 0.22 μm |
---|---|
Flow Rate | 24 mL/min x cm2 |
Wettability | Hydrophobic |
Type | Filter Membranes |
Color | White |
Material | PTFE |
Filter Type | Screen Filter |
Hydrophobicity | Hydrophobic |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Merck Omnipore™ Membrane Filters, 0.2 μm
Hydrophilic PTFE polymer membrane filter compatible with virtually all solvents, acids, and alkaline solutions. Omnipore™ Membrane Filters are biologically and chemically inert.
Merck Omnipore™ Membrane Filters, 0.2 μm
Hydrophilic PTFE polymer membrane filter compatible with virtually all solvents, acids, and alkaline solutions. Omnipore™ Membrane Filters are biologically and chemically inert.
Cytiva Whatman™ WTP Range PTFE Membranes
Suited for applications involving aggressive organic solvents, strong acids, and alkalis due to being chemically stable and inert. Whatman™ WTP Range PTFE Membranes are particularly suitable for preparing samples for HPLC analysis, air and gas sterilization.
Quantity | 100 Pack |
---|---|
Material | PTFE |
Hydrophobicity | Hydrophobic |
Membrane Type | WTP |
Merck Durapore™ Membrane Filters 0.45 μm
Recommended when maximum recovery is important
Thickness (Metric) | 125 μm |
---|---|
Pore Size | 0.45 μm |
Bubble Point | 22 psi |
Flow Rate | >2.6 mL/min x cm2 |
Wettability | Hydrophilic |
Type | Filter Membranes |
Color | White |
Material | PVDF |
Filter Type | Screen Filter |
Hydrophobicity | Hydrophilic |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Cytiva (formerly Pall Lab) TF PTFE Membrane Disc Filters
Strong, chemically resistant membranes for air monitoring and sampling in aggressive environments.
Material | PTFE |
---|---|
Sterility | Non-sterile |
Fisherbrand™ Nylon Membrane Filter
Naturally hydrophilic membrane designed to wet out evenly and retain its superior strength during use in general filtration or medical assays.

Wettability | Yes |
---|---|
Type | Plain Disc |
Color | White |
Quantity | 100 Pack |
Material | Nylon |
Filter Type | Microfilter |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Sterilizing filtration of aqueous solutions, organic solvents, Bacterial and particles removal (blood Glucose, Serum Cholesterol, drugs) |
Autoclavable | Autoclavable |
Sterility | Non-sterile |
Cytiva Whatman™ PTFE Membrane Circles
Provides clarification of corrosives, solvents, and aggressive fluids. Whatman™ PTFE Membrane Circles are particularly useful in HPLC analysis when solid particles can cause permanent damage to the column.
Material | PTFE |
---|---|
Hydrophobicity | Hydrophobic |
Fisherbrand™ Mixed Cellulose Ester Membranes Sterile Filter
Fisherbrand™ Mixed Celluloses Esters Membranes Sterile Filters are composed of cellulose acetate and cellulose nitrate.

Wettability | Yes |
---|---|
Type | Gridded Disc |
Diameter (Metric) | 47 mm |
Quantity | 100/Pk. |
Material | MCE |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Microdialysis of DNA and Proteins, clarification of aqueous solutions during microbiological analysis, identification of Nucleic Acids |
Sterility | Sterile |
Sartorius Polyamide (Nylon) Membrane Filters
Recommended for particle-removing filtration of water, aqueous solutions and solvents for analytical determination. Sartorius Polyamide (Nylon) Membrane Filters are white, non-sterile filters without grids. Choose from two pore sizes in four diameters. Bulk packed for space and cost savings.
Thickness (Metric) | 115 μm |
---|---|
Disposable | Single-use |
Type | Membrane Filter |
Format | Disc |
Color | White |
Material | Polyamide |
Filter Type | Membrane Filter |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Recommended for particle removing filtration of water; aqueous solutions and solvents for analytical determination. |
Autoclavable | Autoclavable |
Sterility | Non-sterile |
Thickness (Metric) | 125 μm |
---|---|
Pore Size | 5 μm |
Bubble Point | 0.9 psi |
Flow Rate | 70 mL/min x cm2 |
Wettability | Hydrophobic |
Type | Filter Membranes |
Color | White |
Material | PTFE |
For Use With (Application) | Clarification of acids, bases, and cryogenic fluids; clarification of propellants; analysis of hydraulic fluids; RNA isolation. |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Membrane Type | Plain |