Whatman
Pura Disc 25mm PES Syringe Filters, 0.2um, 1000 Pk SKU: 6794-2512

Polyethersulfone (PES) Syringe Filters, 0.2µm, 25mm - 6794-2512

Ensuring the biological integrity of sensitive media begins with reliable filtration, and the Polyethersulfone (PES) Whatman Puradisc, 25mm, Syringe Filter, 0.2µm, sterile 1000/pk is engineered to deliver sterile effluents with every use. Central to this performance is a hydrophilic Polyethersulfone (PES) membrane with a precise 0.2 pore structure that ensures the complete removal of bacteria and fine particulates. Complementing the membrane's purity, the housing's thermal bonding eliminates the need for adhesives, removing a common source of extractable contamination. 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. Trust in the consistent performance of your filtration step to remove the variables that often lead to costly re-runs and ambiguous data. 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

1000

Pore Size (µm)

0.2

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wetability

Hydrophilic

• 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
• Biological Sample Prep - The low protein-binding nature of PES ensures maximum recovery of critical enzymes and proteins
• Culture Media Filtration - PES offers the fastest flow rates for viscous culture media while maintaining absolute sterility
• Quality Control Testing - Optimized for delivering reproducible results by filtering contaminants in standard pharmaceutical protocols
• Analytical Sample Prep - Optimized to ensure data integrity by effectively filtering contaminants before instrumental analysis