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Filters and Filtration

Devices and hardware for the filtration and analysis and purification of samples; includes complete kits, bottle-top filters, plates, storage bottles, stirred cells, membranes and papers, and other accessories in a range of sizes and materials.
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1 – 15 of 1,647 results
1

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles - P8 Grade

Ideal for clarifying and removing particles of 20μm and larger, and in applications that do not require a low-ash or ashless paper.

EDGE
Flow Rate Fast: 160mL/min.
Particle Retention 20 to 25 μm
Format Disc
Quantity 100/Pk.
Grade P8
Material Cellulose
Porosity Coarse
Filtration Speed 55 sec.
For Use With (Application) Suitable for coarse and gelatinous precipitates. Retains Fe(OH)3, Al(OH)3, metallic sulfides, iron ores. For clarifying solutions, oils. For zinc analysis (Fe ppt removal). Size 19cm (09-804) widely used for sugar analysis.
2

Fisherbrand™ U.S. Standard Stainless Steel Sieves, 8 in. dia. x 2 in.D

Stainless Steel. Aperture sizes from 5.00 in. opening to 500 mesh.

EDGE
Height (Metric) 6.65 cm
Type Full Height Test Sieve
Depth (English) 2 in.
Diameter (Metric) Outer 203 mm
Depth (Metric) 5.08 cm
Mesh Material Stainless Steel
Diameter (English) Outer 8 in.
Frame Material Stainless Steel
Material Stainless Steel
For Use With (Application) Ideal for particle measurement in agricultural, bio industry, chemical, cosmetics, general industrial, fertilizer, foods, minerals, pharmaceuticals, Plastics and Metal products industries
Height (English) 2.62 in.
3

Fisherbrand™ Glass Fiber Circles

Faster flow, higher retention than cellulose filters

EDGE
Flow Rate Fast
Temperature (English) Max. 932°F
Temperature (Metric) Max 500°C
Material Glass Fiber
Autoclavable Autoclavable
4

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles and Sheets - P4 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

EDGE
Flow Rate Slow: 25mL/min.
Particle Retention 4 to 8 μm
Format Disc
Grade P4
Porosity Medium Fine
Filtration Speed 730 sec.
For Use With (Application) General purpose: slightly slower, more retentive than P5. Retains MgNH4PO4, silver sulfide, cadmium sulfide. In air monitors, collects particulates and chromic acid mist
5

Fisherbrand™ General Filtration Membrane Filters

Useful for most filter applications

EDGE
Material MCE
For Use With (Application) For all analytical, ultracleaning, and sterilizing applications at temperatures below 75°C (167°F) – except those involving esters, ether-alcohols, ketones, nitroparaffins or strong acids and bases.
Autoclavable Autoclavable
6

Thermo Scientific™ Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with PES, CN, SFCA or Nylon Membranes
GREENER_CHOICE

Achieve fast flow rates and high throughput for increased filtration efficiency with Nalgene Rapid-Flow sterile disposable bottle top filters.

EDGE
Disposable Single-use
Type Bottle Top Filter
Material Polystyrene
Filter Type Membrane Filter
Fit for Purpose Sterile
Sterility Sterile
7

MilliporeSigma™ Durapore™ Membrane Filters, 0.22 μm

Recommended when maximum recovery is important. Durapore™ PVDF Membranes: 0.22μ Pore Size provide high flow rates and throughput, low extractables, broad chemical compatibility and low protein binding. Available in diameters ranging from 13mm to 142mm.

EDGE
Pore Size 0.22 μm
Type Filter Membranes
Color White
Material PVDF
Filter Type Screen Filter
Autoclavable Not Autoclavable
Sterility Non-sterile
8

Cytiva Whatman™ Reeve Angel 230 Creped Qualitative Circles

Provide reliable performance for non-critical industrial laboratory and student lab applications

EDGE
Thickness (Metric) 0.4 mm
Particle Retention 25 to 30 μm
Format Disc
Grade 230
Material Cellulose
Porosity Coarse
9

Cytiva Whatman™ Vacu-Guard Filter

Helps to confine and isolate infectious materials in vacuum systems and protect the laboratory. Whatman™ Vacu-Guard Filter protects vacuum pump systems from solvent vapor or gaseous contaminants and aqueous aerosols.

EDGE
Pore Size 0.45 μm
Type Inline Filter
Housing Material Polypropylene
Material (Membrane) PTFE
Quantity 10Pack
For Use With (Application) Isolate infectious materials
Product Line Vacu-Guard Filter
10

Cytiva Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3

Used for high precipitate capacity and increased wet strength. Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3 provide double the thickness of Whatman Grade 1.

EDGE
Thickness (Metric) 390 μm
Grade Grade 3
Material Cellulose
For Use With (Application) A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.
11

Cytiva Whatman™ Quantitative Filter Paper: Grade 40 Circles

Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.

EDGE
Pore Size 8 μm
Particle Retention 8 μm
Airflow Rate 21 s/100 mL/in2
Quantity 100 Pk.
Grade Grade 40
Material Cotton Linters
Filtration Speed ASTM, 75 seconds; Herzberg, 340 seconds
For Use With (Application) Designed for gravimetric analysis and the preparation of samples for instrumental analysis.Gravimetric analysis for numerous components in cements, clays, iron, and steel products.As a primary filter for separating solid matter from aqueous extracts in
Thickness (Metric) 210 μm
Flow Rate Medium
Type Quantitative Filter Paper
Format Disc
Filter Type Ashless
Porosity Medium
12

Cytiva Whatman™ Quantitative Filter Paper: Grade 42 Circles

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.

EDGE
Thickness (Metric) 200 μm
Pore Size 2.5 μm
Flow Rate Slow
Type Quantitative Filter Paper
Format Disc
Airflow Rate 96 s/100 mL/in2
Quantity 100 Pk.
Grade Grade 42
Material Cotton Linters
Filter Type Ashless
Porosity Fine
Filtration Speed 1870 sec.
For Use With (Application) Designed for gravimetric analysis and the preparation of samples for instrumental analysis.For critical gravimetric analysis with the finest particle retention.
13

Cytiva Whatman™ Reeve Angel 202 Creped Qualitative Circles

For routine, noncritical laboratory filtration applications such as general chemistry, pharmacology, emulsions, petroleum testing, soaps and detergents

EDGE
Pore Size 15 to 19 μm
Format Disc
Grade 202
14

Cytiva Whatman™ Quantitative Filter Paper: Grade 41 Circles

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.

EDGE
Thickness (Metric) 215 μm
Pore Size 20 μm
Flow Rate Fast
Particle Retention 20 μm
Type Quantitative Filter Paper
Format Disc
Quantity 100 Pk.
Material Cotton Linters
Porosity Coarse
Filtration Speed ASTM, 12 seconds; Herzberg, 54 seconds
15

Cytiva Whatman™ Binder-Free Glass Microfiber Filters GF/F Circles

Served as the basis filter for EPA standard for the toxicity characteristic leaching procedure. Whatman™ Binder-Free Glass Microfiber Filters GF/F Circles offers an extremely high loading capacity and flow rate.

EDGE
Particle Retention 0.7 μm
Temperature (English) Max. 932°F
Shape Circle
Description Whatman Grade GF/F filter from Cytiva's business is manufactured from pure borosilicate glass. GF/F offers very fine particle retention and good loading capacity and flow rate.
Temperature (Metric) Max 500°C
Grade Grade GF/F
Material Borosilicate Glass
For Use With (Application) Recommended for DNA binding and purification.Very effective in filtering finely precipitated proteins.Can be used in conjunction with GF/D as a prefilter for the successful clarification of extremely ‘difficult’ biochemical solutions and fluids and nucl
Thickness (Metric) 420 μm
Flow Rate 19 sec./100mL/in.2
Type Filter for TCLP Test Use
Format Disc
Thickness (English) 0.016 in.
Autoclavable Autoclavable
Waterflow Rate 41 mL/min