Whatman™ Grade GF/B Glass Microfiber Filters

Name: Whatman™ Grade GF/B Glass Microfiber Filters
Brand: VWR International
SKU: 28497-404-PK-GROUP

Manufacturer: VWR International

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Price Chart

Grouped product items
Cat Code	Description	Quantity	Diameter	Supplier #	Price	Qty
28497-404-PK 28497-404-PK	21.00 mm Grade GF/B Glass Microfiber Filters	100/Pack	21 mm	1821-021	$120.35	+ -
28497-426-PK 28497-426-PK	24.00 mm Grade GF/B Glass Microfiber Filters	100/Pack	24 mm	1821-024	$108.38	+ -
28497-437-PK 28497-437-PK	25.00 mm Grade GF/B Glass Microfiber Filters	100/Pack	25 mm	1821-025	$119.79	+ -
28497-454-PK 28497-454-PK	37.00 mm Grade GF/B Glass Microfiber Filters	100/Pack	37 mm	1821-037	$145.51	+ -
28497-459-PK 28497-459-PK	42.50 mm Grade GF/B Glass Microfiber Filters	100/Pack	42.5 mm	1821-042	$162.20	+ -
28497-460-PK 28497-460-PK	47.00 mm Grade GF/B Glass Microfiber Filters	100/Pack	47 mm	1821-047	$189.79	+ -
28497-470-PK 28497-470-PK	55.00 mm Grade GF/B Glass Microfiber Filters	100/Pack	55 mm	1821-055	$206.02	+ -
28497-481-PK 28497-481-PK	70.00 mm Grade GF/B Glass Microfiber Filters	100/Pack	70 mm	1821-070	$274.63	+ -
28497-492-PK 28497-492-PK	90.00 mm Grade GF/B Glass Microfiber Filters	25/Pack	90 mm	1821-090	$87.05	+ -
28497-506-PK 28497-506-PK	110.00 mm Grade GF/B Glass Microfiber Filters	25/Pack	110 mm	1821-110	$103.64	+ -
28497-517-PK 28497-517-PK	125.00 mm Grade GF/B Glass Microfiber Filters	25/Pack	125 mm	1821-125	$142.79	+ -
28497-528-PK 28497-528-PK	150.00 mm Grade GF/B Glass Microfiber Filters	25/Pack	150 mm	1821-150	$185.13	+ -
Total $0.00

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Achieve superior liquid clarification and high-efficiency particle retention with Whatman™ Grade GF/B Glass Microfiber Filters, Binder Free. These thick filters are the established standard for applications requiring fine particle filtration coupled with exceptional sample capacity, particularly liquid scintillation counting and suspended solids analysis. Meticulously manufactured from borosilicate glass, they deliver consistently reliable performance for your most demanding analytical needs.

Description

Overview

In Stock!

Lead Times May Vary.

The filter’s core strength lies in its dual capability: combining fine particle retention (1.0 µm) with an exceptional loading capacity. Manufactured from thick borosilicate glass microfiber (675 µm), this filter is ideal for samples with high particulate loads. It is binder-free, which is critical for preventing contamination in sensitive analytical methods like liquid scintillation counting, where residue interference must be avoided. Furthermore, its ability to withstand high temperatures up to 550°C ensures compatibility with high-heat procedures.

Features:

Thick borosilicate glass material (675 µm) provides excellent loading capacity
Nominal particle retention of 1.0 µm (fine porosity)
Binder-free to ensure sample purity in sensitive liquid scintillation counting applications
Fast filtration speed of 195s (Herzberg)
Withstands high temperatures up to 550°C
Ideal for liquid clarification and suspended solids analysis
Available in a wide range of diameters

Specifications

SKU	Color	Flow Rate	Shape	Porosity
28497-404-PK	White	Fast	Circle	Fine
28497-426-PK	White	Fast	Circle	Fine
28497-437-PK	White	Fast	Circle	Fine
28497-454-PK	White	Fast	Circle	Fine
28497-459-PK	White	Fast	Circle	Fine
28497-460-PK	White	Fast	Circle	Fine
28497-470-PK	White	Fast	Circle	Fine
28497-481-PK	White	Fast	Circle	Fine
28497-492-PK	White	Fast	Circle	Fine
28497-506-PK	White	Fast	Circle	Fine
28497-517-PK	White	Fast	Circle	Fine
28497-528-PK	White	Fast	Circle	Fine

Downloads

Whatman™ Filter Paper Decision Chart

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Additional Info

SKU	Material	Max Temperature	Thickness	Type	Grade	Basis Weight	Air Flow Rate
28497-404-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-426-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-437-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-454-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-459-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-460-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-470-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-481-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-492-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-506-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-517-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²
28497-528-PK	Borosilicate Glass	550°C	675 µm	Binder Free	GF/B	143 g/m³	12 s/100 mL/in²