Whatman
GD/X 25mm Sterile Syringe Filter, PES, 0.45um (50 pcs) SKU: 6896-2504

Polyethersulfone (PES) Syringe Filters, 0.45µm, 25mm - 6896-2504

Designed to protect sensitive chromatography columns from clogging, the Polyethersulfone (PES) Whatman GD/X 25mm Sterile Syringe Filter, PES filtrationmedium, 0.45µm 50/pk delivers exceptional retention of particulates without compromising flow rates. At the core of the device is a uniform Polyethersulfone (PES) matrix, delivering high dirt-loading capacity and reliable exclusion of interfering particles. Complementing the membrane's purity, the housing's thermal bonding eliminates the need for adhesives, removing a common source of extractable contamination. Ultimately, this rigorous attention to manufacturing quality ensures batch-to-batch reproducibility, allowing laboratories to standardize their workflows with total confidence.

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 0.45 retention rating for clarification

Key Housing Characteristics

• High-purity Polypropylene encapsulation housing
• Luer-Lok/ Luer Slip for secure fitting
• 4.6cm² effective filtration area
• 1400 µL 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. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

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

Bubble Point (psi)

2.3 bar (33 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Flow Rate

30

Holdup Volume

1.4ml

Material

Polyethersulfone (PES)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

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

Wetability

Hydrophilic

• Life Science Applications - Ideal for filtering serum and plasma, where minimizing nonspecific binding is crucial for assay accuracy
• Biological Sample Prep - The low protein-binding nature of PES ensures maximum recovery of critical enzymes and proteins
• Ion Chromatography - The extremely low extractable profile of PES provides the clean baselines needed for sensitive IC analysis
• 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 removing particulates in standard pharmaceutical protocols
• General Laboratory Filtration - Increases workflow efficiency by protecting analytical instruments without sacrificing flow rates