Pall
Acro Disc One Syringe Filters w/ wwPTFE Membrane - GxF/0.45um, 25mm, Autopack Tubes, 200/Pk SKU: AP-4920

Hydrophilic PTFE (wwPTFE) Syringe Filters, 0.45µm, 25mm - AP-4920

Simplify your laboratory inventory with the Hydrophilic PTFE (wwPTFE) Syringe Filters, a truly universal filter capable of handling aggressive solvents and water-based samples alike. At the core of the filter is a stabilized PTFE matrix that provides universal chemical resistance without the hydrophobicity of standard Teflon. 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 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

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. Choose Pall technology to ensure that your critical samples are processed with the highest level of recovery and sterility available.

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

200

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 15-20 min

Wetability

Hydrophilic

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