Acro Disc Syringe Filters w/ Supor Membrane, Sterile - 0.45um, 32mm, 50/Pk
Pall SKU: 4654

Pall Acrodisc Polyethersulfone (PES) Syringe Filters, 0.45 µm, 32 mm, 50/Pk - 4654

Pall Corporation brings decades of fluid management expertise to laboratory-scale filtration challenges. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. The PES matrix tolerates aqueous buffers, aliphatic alcohols, and glycols in routine use while minimizing protein binding for high analyte recovery and wets on contact with aqueous buffers. The polypropylene housing holds a reliable seal against the membrane edge while holding extractables low for sensitive analyses and sustains efficient flow on viscous samples. Where small-volume samples must reach the instrument clean, syringe filtration clears particulates in a single pass.

Technical Specifications

• Naturally hydrophilic surface wets without pre-wetting in aqueous applications
• Low protein binding preserves dilute analytes for maximum recovery
• Broad compatibility with aqueous buffers, aliphatic alcohols, glycols, and strong bases
• Stable across the full pH 1 to 14 operating range
• Absolute pore size rating gives consistent results across protocols

Housing Specifications

• Resists aqueous acids, bases, and alcohols in routine sample prep
• Tough polypropylene body tolerates repeated handling at the bench
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Stable across the full aqueous pH range in routine sample work

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. General-purpose aqueous filtration supports the sample types you handle every day from reagent and buffer preparation through routine sample clarification. Call on the Tisch Scientific team to standardize filtration products across your methods with volume pricing and documentation.

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

Bubble Point (psi)

33psi

Burst Pressure (psi)

75psi

Connection Type

Luer-Lock/ Luer Slip

Construction

Polypropylene (PP)

Diameter

32mm

Filtration Area

5.8cm²

Flow Rate

700ml

Holdup Volume

< 100 µL

Material

Polyethersulfone (PES)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

55°C

Pack Count

50

Pore Size (µm)

0.45

Sterility

Sterile

Wettability

Hydrophilic

• Viscous Biologicals - Maintains flow rates even when filtering protein-rich or slightly viscous biological fluids that would clog other filters
• High-Throughput Sterile Filtration - Processes large volumes of biological fluids significantly faster than standard PES to reduce processing time
• Time-Sensitive Prep - Accelerates filtration workflows where speed is critical to preserving sample integrity and preventing biological degradation
• Media Preparation - Sterilizes tissue culture media with minimal protein loss, ensuring optimal cell growth and viability in sensitive cultures
• Buffer Filtration - Ensures particulate-free buffers for critical downstream processes and instrumentation to prevent costly system downtime
• Biologicals - Maximizes recovery of high-value proteins and therapeutics during sterile filtration steps, protecting yield in production runs