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Glass Fiber Filters and Prefilters

Glass filters and pre-filters for contamination analysis, liquid clarification, and collection of suspended solids; available in with or without binders and in a range of grades for fine particle filtration.
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1

MilliporeSigma™ Woven Mesh Spacer, Dacron, 124 mm

Woven mesh spacers are placed between filters in serial filtration to prevent the downstream screen filter from 'blinding' the upstream filter pores. They increase flow rate & throughput.

2
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Cytiva Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/C

Combines fine particle retention with good flow rate. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/C are ideal for the collection of suspended solids in potable water, natural and industrial wastes.

EDGE
Thickness (Metric) 260 μm
Flow Rate 10.5 sec./100 mL
Particle Retention 1.2 μm
Temperature (English) Max. 932°F
Basis Weight 53 g/m2
Shape Circle
Format Disc
Description GE’s Whatman filter paper Grade GF/C glass filters offer a good flow rate and loading capacity that support total suspended solids analysis.
Thickness (English) 0.01 in.
Temperature (Metric) Max 500°C
Grade Grade GF/C
Material Borosilicate Glass
Waterflow Rate 105 mL/min
3
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Cytiva Whatman™ Binder-Free Glass Microfiber Filters, Grade 934-AH Circles

Designed for analysis of non-filterable residue and materials that require a high loading capacity glass microfiber filter. Whatman™ Binder-Free Glass Microfiber Filters, Grade 934-AH Circles are also used in cell harvesting, liquid scintillation, and monitoring pollution.

EDGE
Particle Retention 1.5 μm
Temperature (English) Max. 932°F
Shape Circle
Description Whatman Grade 934-AH borosilicate glass microfiber filters from GE are smooth water quality filters with high retention efficiency. Grade 934-AH filters are often used in total suspended solids analysis.
Filtration Time 47 sec./100mL
Quantity 100 Pack
Grade Grade 934-AH
Material Borosilicate Glass
Thickness (Metric) 435 μm
Flow Rate 3.7 sec./100mL/in.2
Type Filter for Total Suspended Solids Analysis
Basis Weight 64 g/m2
Format Disc
Thickness (English) 0.017 in.
Surface Type Smooth
Waterflow Rate 341 mL/min
4
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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
5
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Cytiva Whatman™ 934-AH RTU Glass Microfiber Filters

Fast and convenient

EDGE
Thickness (Metric) 435 μm
Flow Rate 47 sec./100mL
Particle Retention 1.5 μm
Type RTU Filter for Total Suspended Solids Analysis
Temperature (English) Max. 1022°F
Description Our Whatman glass microfiber filter papers in grade 934-AH RTU have been pre-washed, dried (or ignited), cooled, desiccated and weighed, which eliminates the pre-treating steps that are otherwise required by the US EPA Laboratory Standard Method 2540 part
Thickness (English) 0.017 in.
Temperature (Metric) Max 550°C
Quantity 100 pieces
Grade 934-AH RTU
Material Borosilicate Glass
For Use With (Application) Monitoring of rivers, lakes and coastal waters
Waterflow Rate 341 mL/min
6
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Cytiva Whatman™ Binder-Free Glass Microfiber Prefiters, Grade GF/D

Functions as a prefilter when used with GF/B microfiber filters. Whatman™ Binder-Free Glass Microfiber Prefilters, Grade GF/D provide efficient membrane protection, especially during liquid scintillation counting.

EDGE
Particle Retention 2.7 μm
Temperature (English) Max. 932°F
Shape Circle
Description GE’s Whatman Grade GF/D fine membrane filters are thick and offer good loading capacity. GF/D can also function as a prefilter when used with GF/B, and it comes in many sizes to fit most filter holders.
Temperature (Metric) Max 500°C
Grade Grade GF/D
Material Borosilicate Glass
Thickness (Metric) 675 μm
Flow Rate 2.6 s/100mL/in2
Type Prefilter
Basis Weight 121 g/m2
Format Disc
Thickness (English) 0.02 in.
Autoclavable Autoclavable
Waterflow Rate 681 mL/min
7
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Cytiva Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/A

Combines high loading capacity with fine particle retention. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/A are ideal for gravimetric determination of airborne particulates, stack sampling and absorption methods of air pollution monitoring.

EDGE
Particle Retention 1.6 μm
Temperature (English) Max. 932°F
Shape Circle
Description GE’s Whatman Grade GF/A glass microfiber filters feature fine retention. GF/A filters are suitable for water quality parameter measurement and air filtration applications.
Temperature (Metric) Max 500°C
Quantity 100 Pieces
Grade Grade GF/A
Material Borosilicate Glass
For Use With (Application) Used for high-efficiency general purpose laboratory filtration, including water pollution monitoring of effluents, for filtration of water, foodstuff analyses, protein filtration, and radioimmunoassay of weak β emitters.
Thickness (Metric) 260 μm
Flow Rate 13 sec./100mL
Type Fine Retention Filter
Format Disc
Thickness (English) 0.01 in.
Waterflow Rate 143 mL/min
8
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Cytiva Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/B

Filters fine particles with high wet-strength and high loading capacity. Whatman™ Binder-Free Microfiber Filters, Grade GF/B are particularly useful for liquid clarification and liquid scintillation counting.

Thickness (Metric) 675 μm
Flow Rate 5.5 sec./100mL
Particle Retention 1.0 μm
Type Filter
Temperature (English) Max. 932°F
Basis Weight 143 g/m2
Format Disc
Description GE’s Whatman brand Grade GF/B is a thick filter with fine particle filter and good loading capacity. GF/B filters are particularly useful for liquid clarification and liquid scintillation counting.
Thickness (English) 0.02 in.
Temperature (Metric) Max 500°C
Grade Grade GF/B
Material Borosilicate Glass
Waterflow Rate 81 mL/min
9
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Cytiva Whatman™ Acid-Treated Low-Metal TCLP Filters

Binder free filters

Thickness (Metric) 420 μm
Particle Retention 0.7 μm
Type TCLP Limits Test Filter
Shape Circle
Format Disc
Description GE’s Whatman TCLP test filters are acid-treated with low metal content. They support TCLP testing by providing accurate information about TCLP limits to ensure the best possible disposal plan can be put into action.
Material Borosilicate Glass
Waterflow Rate 60 mL/min
10
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Cytiva Whatman Grade 934-AH RTU Glass Microfiber Filters

Ready to use, Grade 934-AH RTU Glass Microfiber Filter Papers are the time-saving version of GE’s 934-AH glass microfiber filter papers, which are widely used for total suspended solids analysis.

Particle Retention 1.5 μm
Quantity 100
Grade 934-AH RTU
Material Glass Microfiber
Autoclavable Not Autoclavable
Sterility Non-sterile
Waterflow Rate 341 mL/min
11
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Cytiva Whatman™ Grade 934-AH RTU Glass Microfiber Filters, Ready to Use

Widely used for total suspended solids analysis.

12
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Cytiva Whatman™ Glass Microfiber Prefilter, 2μm Particle Retention Rating

Multilayer graded density filters for rapid and efficient filtration of samples with high solids content. Whatman™ Glass Microfiber Prefilters are designed with a coarse glass filter top layer (10μm) meshed with a finer layer. The multigrade glass filter traps larger particles in its pores of the coarse layer, medium-sized particles in the interface meshing, and smaller particles in the interstices of the fine layer.

Particle Retention >2 μm
Temperature (English) Max. 932°F
Shape Circle
Description GE’s Whatman GMF 150 prefilters are multilayer graded density filters for rapid and efficient filtration of samples with high solids content.
Airflow Rate 1.5 s/100 ml/1.56 cm2
Temperature (Metric) Max 500°C
Quantity 40/pack
Grade Grade GMF 150
Material Borosilicate Glass
For Use With (Application) Prefilter with high loading capacity and good flow rates.
Thickness (Metric) 750 μm
Flow Rate 1.5 sec./100mL/1.56cm2
Type Prefilter
Format Disc
Thickness (English) 0.029 in.
Waterflow Rate 887 mL/min
13
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Cytiva Whatman™ Glass Microfiber Prefilter, 1μm Particle Retention Rating

Multilayer graded density filters for rapid and efficient filtration of samples with high solids content. Whatman™ Glass Microfiber Prefilters are designed with a coarse glass filter top layer (10μm) meshed with a finer layer. The multigrade glass filter traps larger particles in its pores of the coarse layer, medium-sized particles in the interface meshing, and smaller particles in the interstices of the fine layer.

Thickness (Metric) 730 μm
Particle Retention >1 μm
Type Prefilter
Shape Circle
Format Disc
Description GE’s Whatman GMF 150 prefilters are multilayer graded density filters for rapid and efficient filtration of samples with high solids content.
Airflow Rate 3.1 sec./100 mL/1.56 cm2
Grade Grade GMF 150
Material Borosilicate Glass
For Use With (Application) Prefilter with high loading capacity and good flow rates.
Waterflow Rate 222 mL/min.
14

GVS™ Pre-Sep™ Glass Fiber Membranes Without Binders

Glass prefilters without binders are designed to avoid binder extractables during solvent filtration or gravimetric analysis

15

GVS Glass Prefilters

With or without binders

Material Borosilicate Glass Fiber
Autoclavable Autoclavable
Sterility Sterile