Pura Disc 25mm GF/F GMF Syringe Filters, 0.7um, 200 Pk
Whatman SKU: 6825-2527

Whatman Puradisc Glass Fiber (GF) Syringe Filters, 0.7 µm, 25 mm, 200/Pk - 6825-2527

Whatman applies the same process controls across its filtration portfolio, verifying rated performance at the production lot level. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. Naturally hydrophilic glass fiber wets rapidly with aqueous samples while sustaining high dirt-loading capacity and holds structural integrity through conditioning cycles. Polypropylene construction maintains a low-dead-volume internal flow path 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

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

Housing Specifications

• Resists aqueous acids, bases, and alcohols in routine sample prep
• Optimized internal geometry minimizes backpressure in service
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Thermal-bonded construction keeps adhesives out of the fluid path

Upstream clarification pays for itself by keeping your columns clear and your analytical day on schedule. Pre-injection filtration protects the resolution your methods depend on by clearing particulates ahead of the column and frits. Start a live chat with our customer support technicians for quick answers to your compatibility, sizing, and sterility questions.

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

Connection Type

Luer-Lok/ Luer Slip

Construction

Glass Microfiber (Binder Free)

Diameter

25mm

Filtration Area

4.91cm²

Flow Rate

Fast

Material

Glass Micro Fiber

Maximum Operating Temperature (°C)

550°C

Membrane Thickness (µm)

420µm

Pack Count

200

Pore Size (µm)

0.7

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 500°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Environmental Monitoring - Ideal for filtering contaminants in water and wastewater analysis to ensure regulatory compliance
• Biological Fluid Analysis - Protects sensitive downstream instruments from filtering contaminants that can cause system failure
• Analytical Sample Prep - Optimized to ensure data integrity by effectively filtering contaminants before instrumental analysis
• Research & Development - Supports protocols that need to filter contaminants, providing the ability to optimize sample clarity
• General Laboratory Filtration - Increases workflow efficiency by optimizing sample clarity without sacrificing flow rates
• Sample Clarification - Optimizing sample clarity via rapid filtering of contaminants to maintain high throughput in busy laboratories