47 mm
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Magna Polypropylene Membrane Filters
GVS Filter TechnologyBroad chemical compatibility Hydrophilic Low protein binding Recommended for: aqueous and organic solvent filtration; HPLC sample preparating requiring low detection levels; ion chromatography; total digest for heavy metals pH range: 1-14 Composed of pure polypropylene…
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Black Polycarbonate (PCTE) Membrane Filters
GVS Filter TechnologyFor epifluorescence microscopy Smooth flat surface- micro-organisms are retained in one plane on the surface Do not stain Essentially zero autofluorescence Recommended for: epifluorescence microscopy; water testing; observation of bacteria (0.2-5 µm), yeasts and molds…
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Polysulfone Bottle-Top Filter Holders
Thermo Scientific NalgeneConvenience of a bottle top filter with the ability to re-use the filter housing Nalgene 320 Autoclavable Securely screws onto glass media bottles* with 33 mm or 45 mm neck sizes Deep screw threads attach directly to bottle allowing convenient filling and vacuum filtration without…
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Hydrophobic Polycarbonate (PCTE) Membranes
GVS Filter TechnologyFor chemotaxis and venting applications Smooth flat surface Recommended for: chemotaxis, cell studies, PVP-free for coating applications Hydrophobic polycarbonate membrane filters are identical to the standard PCTE filters except they are manufactured without the wetting agent.…
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Micron-Sep Membrane Filters
GVS Filter TechnologyMicronSep White Packs Available pre-sterilized or autoclavable with gridded surface. Autoclavable filters come in envelopes of 10 filters and 10 absorbent cellulosic pads. The envelopes are designed to withstand normal autoclaving environments and feature an indicator that changes color after…
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Magna PES Membrane Filters
GVS Filter TechnologyUniform pore structure for low binding applications where reliable, fast flow rates and high throughputs are required Polyethersulfone Plain surface Hydrophilic Withstands temperatures up to 135°C Filters are inert, providing extremely low extractable levels in…
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Magna PTFE (Teflon) Membrane Filters
GVS Filter TechnologyAggressive chemical compatibility Inherently hydrophobic Laminated and unlaminated Unlaminated membranes are more compatible with strong acids, aggressive solvents and high temperatures Recommended for: aggressive solvents, strong acids or base filtration; sterilization,…
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Magna™ Nylon Membrane Filters
GVS Filter TechnologyWide chemical compatibility Naturally hydrophilic Wide range of pore sizes Recommended for: aqueous, solvent and mobile phase filtration; HPLC sample penetration and solvent filtration; clarification and sterilization Autoclavable pH range: 3-12 Manufactured using a…
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Specialty Application PCTE Membrane Filters
GVS Filter TechnologyMeasurement of Organic Halides in Water and Wastewater EPA Standard 1650 (AOX Method) (4663G77 and G79) For filtration of water sample after acidification and slurry with activated charcoal to adsorb organic halides. Filter and residue are combusted and halogen atoms converted to ions for…
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Microbiological Monitors
GVS Filter TechnologyMicrobiological Monitor: The membrane is fixed to the unit. Available 47 mm or 56 mm Features and Benefits: Rapid testing: Pre-sterilized reduces testing time by up to 70% No flaming required: Combined filtration unit minimizes the risk of cross-contamination Filtration…
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Magna CA Supported Cellulose Acetate Membrane Filters
GVS Filter TechnologyLowest protein binding filter available Hydrophilic Higher strength Recommended for sterilization applications including tissue culture media, protein, enzyme and biological fluid pH range: 1-14 Modified, pure cellulose acetate offers the lowest binding of any available…
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Gravi-Seal 47 mm Analytical Funnel
GVS Filter TechnologyUnique gravity-sealing design Two-piece construction One-handed operation Large membrane access points for forceps Available in polysulfone or polypropylene No clamps or locking devices to manipulate. Less expensive than stainless steel, glass or magnetic funnels, yet compare favorably with…
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Analytical Funnels
GVS Filter TechnologyReady-to-use 100 mL filtration units with removable cellulose nitrate membrane and culturing devices. Saves up to 50% in time with no flaming and sterilization required Minimizes the risk of cross contamination Easy release of membrane
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Polycarbonate (PCTE) Membrane Filters
GVS Filter TechnologyMicroporous filters with precisely controlled pore size Hydrophilic- treated with PVP Smooth, flat surface Recommended for: water analysis and oceanography; surface capture for analysis; chemotaxis; microscopy; cytology (3, 5 and 8 µm); low protein binding applications pH…
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Poretics Polyester Membrane Filters
GVS Filter TechnologyWide chemical resistance Hydrophilic Smooth, flat surface Autoclavable Recommended for: aerosol analysis, trace element analysis, gunshot residue testing and filtration of aggressive solutions pH range: 4-8 Thin, track-etched precision filters, similiar to the PCTE…