GD/X 25mm Sterile Syringe Filter, Glass Microfiber Filteration Medium, 0.45um (50pk)
Whatman SKU: 6902-2504

Whatman GD/X Glass Fiber (GF) Syringe Filters, 0.45 µm, 25 mm, 50/Pk - 6902-2504

Whatman manufactures under Cytiva's quality infrastructure, drawing on a filtration heritage that spans laboratory, environmental, and industrial applications. Across analytical workflows, the syringe filter is where particulates leave the sample stream. Glass fiber withstands high-temperature pre-conditioning up to 500°C while drawing aqueous samples through without preconditioning and delivers nominal retention as a depth medium. The PP housing sustains efficient flow on viscous samples while resisting aqueous acids, bases, and alcohols in routine use and holds extractables low for sensitive analyses. When chromatographic methods demand particle-free injections, point-of-use syringe filtration clarifies the sample before it reaches the column.

Technical Specifications

• Withstands high-temperature pre-conditioning up to 500°C
• Naturally hydrophilic surface wets rapidly with aqueous samples
• Nominal depth retention with high dirt-loading capacity
• Inorganic construction suits demanding sample-preparation chemistries
• Biologically inert borosilicate fiber with broad chemical compatibility

Housing Specifications

• Stable across the full aqueous pH range in routine sample work
• Plasticizer-free polyolefin construction keeps the fluid path clean
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Resists stress cracking from aqueous salt and buffer solutions

Sample clarification before injection is the cheapest insurance your chromatography system has. Pre-injection filtration protects the resolution your methods depend on by clearing particulates ahead of the column and frits. Review our Chemical Compatibility Chart, or ask technical service to confirm chemical compatibility for your specific application.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Holdup Volume

1.4ml

Material

Glass Micro Fiber

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

550°C

Pack Count

50

Pore Size (µm)

0.45

Prefilter (Yes/No)

Yes

Prefilter Material

Glass Microfiber (GMF)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• General Laboratory Filtration - Increases workflow efficiency by protecting analytical instruments without sacrificing flow rates
• Analytical Sample Prep - Optimized to ensure data integrity by effectively removing particulates before instrumental analysis
• Sample Clarification - Protecting analytical instruments via rapidly removing particulates to maintain high throughput in busy laboratories
• Biological Fluid Analysis - Protects sensitive downstream instruments from removing particulates that can cause system failure
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols
• Particulate Removal - Designed for removing particulates, this filter aids in protecting analytical instruments across diverse sample types