Whatman
Pura Disc 25mm PES Syringe Filters, 0.2um, 50 Pk SKU: 6780-2502

Polyethersulfone (PES) Syringe Filters, 0.2µm, 25mm - 6780-2502

Eliminate the risk of microbial contamination in your upstream workflows with the Polyethersulfone (PES) Whatman Puradisc, 25mm, Syringe Filter, 0.2µm, sterile 50/pk, optimized for filtration protocols. Leveraging the specific retention properties of Polyethersulfone (PES), this device offers a validated 0.2 barrier against microbial contaminants. Designed to facilitate rapid processing, the housing features an optimized flow geometry that minimizes backpressure, allowing for easier manual filtration even with viscous samples. The result is a filtration solution manufactured in an ISO-certified facility that minimizes distinct interference, providing clean baselines for publication-quality data.

Key Polyethersulfone (PES) Membrane Characteristics

• Polyethersulfone (PES) membrane with hydrophilic affinity
• Low Protein Binding characteristics
• Broad compatibility with aqueous solutions, alcohols, and mild bases
• Ideal for biological samples and culture media
• Verified 0.2 retention rating for clarification

Key Housing Characteristics

• High-purity Polypropylene encapsulation housing
• Luer-Lok/ Luer Slip for secure fitting
• 4.2cm² effective filtration area
• <100µl holdup volume to minimize sample loss

By selecting a filter that matches the exact chemical nature of your samples, you ensure that your workflow remains uninterrupted by membrane failures. You can rely on the certified integrity of these units to protect your critical samples and instrumentation from damaging contaminants. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

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

Bubble Point (psi)

3.4 bar (50 psi)

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)

0.2

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wetability

Hydrophilic

• Culture Media Filtration - PES offers the fastest flow rates for viscous culture media while maintaining absolute sterility
• Biological Sample Prep - The low protein-binding nature of PES ensures maximum recovery of critical enzymes and proteins
• Life Science Applications - Ideal for filtering serum and plasma, where minimizing nonspecific binding is crucial for assay accuracy
• Ion Chromatography - The extremely low extractable profile of PES provides the clean baselines needed for sensitive IC analysis
• Quality Control Testing - Optimized for delivering reproducible results by filtering contaminants in standard pharmaceutical protocols
• Biological Fluid Analysis - Protects sensitive downstream instruments from filtering contaminants that can cause system failure