Pall
Acro Disc One Syringe Filters w/ wwPTFE Membrane - 0.45um, 25mm, 1000/Pk SKU: AP-4918

Hydrophilic PTFE (wwPTFE) Syringe Filters, 0.45µm, 25mm - AP-4918

Streamline your HPLC and dissolution testing with a single filtration solution: the Hydrophilic PTFE (wwPTFE) Syringe Filters with water-wettable PTFE technology. Central to this universality is the wwPTFE membrane, which remains chemically compatible with aggressive solvents while being fully water-wettable. Complementing the membrane's purity, the housing's thermal bonding eliminates the need for adhesives, removing a common source of extractable contamination. Meeting the needs of regulated environments, this series supports compliance with stringent purity protocols across pharmaceutical and environmental applications.

Key Hydrophilic PTFE (wwPTFE) Membrane Characteristics

• Hydrophilic PTFE (wwPTFE) membrane with hydrophilic (water-wettable) affinity
• Low Protein Binding characteristics
• Universal compatibility (Aqueous + Organic)
• None; compatible with virtually all lab solvents
• Verified 0.45 retention rating for clarification

Key Housing Characteristics

• High-purity Polypropylene encapsulation housing
• Luer-Lock/ Luer Slip for secure fitting
• 2.8cm² effective filtration area
• < 100 µl holdup volume to minimize sample loss

Your laboratory throughput depends on reliable consumables, and these filters are designed to keep your sequences running smoothly, sample after sample. You can rely on the certified integrity of these units to protect your critical samples and instrumentation from damaging contaminants. Integrate the proven performance of Pall membranes into your workflow to eliminate the risks of contamination and data loss.

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

Bubble Point (psi)

26psi

Connection Type

Luer-Lock/ Luer Slip

Construction

Polypropylene (PP)

Diameter

25mm

Filtration Area

2.8cm²

Flow Rate

240ml

Holdup Volume

< 100 µL

Material

Hydrophilic PTFE (wwPTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

55°C

Pack Count

1000

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 15-20 min

Wetability

Hydrophilic

• Solvent Selection - Eliminates the risk of membrane incompatibility when switching between different solvent systems during method development
• Ion Chromatography - Provides a clean filtrate for sensitive ion analysis, minimizing background interference and ensuring accurate quantification
• UHPLC/HPLC Prep - Certified for low extractables to ensure noise-free baselines in sensitive chromatography applications and trace analysis
• Universal Filtration - Handles both aqueous and organic samples with a single device, reducing inventory complexity and preventing selection errors
• Sample Protection - Low-binding properties ensure maximum recovery of low-concentration analytes to improve the accuracy of quantitative assays
• Dissolution Testing - Simplifies workflows by filtering diverse media types without the need for pre-wetting, streamlining high-volume protocols