GD/X 25mm Syringe Filter, Glass Microfiber Filteration Medium, 0.45um (150 pcs)
Whatman SKU: 6894-2504

Whatman GD/X Glass Fiber (GF) Syringe Filters, 0.45 µm, 25 mm, 150/Pk - 6894-2504

Whatman's expertise in cellulose, glass fiber, and polymeric membrane production guides material selection and quality control. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. The borosilicate glass matrix resists chemical attack across diverse solvents and accepts water-based samples on contact. The PP housing prevents sample bypass under rated operating pressure and stays inert across common laboratory solvents. When sterile or particle-free preparation matters at the bench, the syringe filter delivers it with minimal added handling.

Technical Specifications

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

Housing Specifications

• Low extractable contribution protects sensitive downstream analyses
• Medical-grade polypropylene with broad chemical compatibility
• Resists aqueous acids, bases, and alcohols in routine sample prep
• Optimized internal geometry minimizes backpressure in service

Filtering buffers, reagents, and aqueous samples keeps your preparation moving and consistent. Consistent aqueous clarification keeps your sample preparation moving from the first sample of the day through the last. Request a quality certificate, lot documentation, or a blanket-order quote from the Tisch Scientific support team.

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

150

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

• Sample Clarification - Protecting analytical instruments via rapidly removing particulates to maintain high throughput in busy laboratories
• Particulate Removal - Designed for removing particulates, this filter aids in protecting analytical instruments across diverse sample types
• Environmental Monitoring - Ideal for removing particulates in water and wastewater analysis to ensure regulatory compliance
• 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
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols