Pura Disc 25mm PES Syringe Filters, 1.0um, 50 Pk
Whatman SKU: 6780-2510

Whatman Puradisc Polyethersulfone (PES) Syringe Filters, 1 µm, 25 mm, 50/Pk - 6780-2510

Whatman has built such a strong track record in published methods that laboratories default to citing its name in standardized protocols. Many syringe filters ship with lot-specific quality documentation, giving analysts traceability that an ad hoc bulk filtration setup typically lacks. The PES membrane loads aqueous buffers with zero pre-wetting delay while relying on modified, not native, surface chemistry and handles strong bases across a broad aqueous range. Polyolefin construction sheds virtually no extractable material into the sample while resisting degradation from routine sample matrices and sustains efficient flow on viscous samples. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Technical Specifications

• High flow rate pairs with a low extractable background
• Pore structure integrity holds through autoclave cycles up to 126°C
• Non-hydrogen-bonding surface avoids the polar adsorption nylon's amide backbone causes
• Aromatic sulfone backbone underlies stability across the full pH range
• Antibody and protein samples pass through PES with minimal adsorptive loss

Housing Specifications

• Optimized internal geometry minimizes backpressure in service
• Rigid polypropylene body maintains its geometry through routine filtration pressure
• Plasticizer-free polyolefin construction keeps the fluid path clean
• The seal formed against the membrane blocks bypass at rated operating pressure

Filtering buffers, reagents, and aqueous samples keeps your preparation moving and consistent. General-purpose aqueous filtration supports the sample types you handle every day across your water-analysis and general analytical workflows. 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.

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.2cm²

Holdup Volume

<100µl

Material

Polyethersulfone (PES)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

Pore Size (µm)

1

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Serum Filtration - Clarifies serum and plasma samples quickly while retaining critical proteins needed for accurate downstream analytical testing.
• PFAS Water Testing - PES filters process aqueous samples for EPA Method 1633A PFAS testing without added fluorinated background.
• Biological Fluids - Filters buffers and biological fluids efficiently, using the PES membrane to maximize flow and minimize non-specific binding.
• Biological Assays - Protects sensitive enzymatic and antibody-based assays from particulate interference without adsorbing critical reagents.
• Life Science Prep - Speeds processing of viscous biological solutions, improving laboratory workflow efficiency during busy sample prep days.
• Nucleic Acid Recovery - Processes DNA and RNA extracts with minimal nucleic acid adsorption, preserving yield on the hydrophilic PES surface.