Acro Disc Syringe Filters w/ PTFE Membrane - 0.45um, 25mm, 200/Pk
Pall SKU: 4219-N

Pall Acrodisc PTFE Syringe Filters, 0.45 µm, 25 mm, 200/Pk - 4219-N

Pall's engineering and quality infrastructure extends from its process-scale filtration systems to its laboratory devices. Across analytical workflows, the syringe filter is where particulates leave the sample stream. PTFE holds consistent absolute retention at the rated pore size while staying chemically inert against solvents, acids, and alkalis in service and suits gas, vent, and solvent-stream filtration. Polypropylene construction holds extractable contribution low for sensitive analyses and maintains housing integrity through the filtration run. For routine sample preparation across many methods, the syringe filter folds clarification into one disposable step.

Technical Specifications

• Low extractables keep the chromatographic background clean
• Absolute pore size rating gives consistent results across protocols
• Stable across a wide operating temperature range for demanding methods
• Chemically inert against aggressive solvents, strong acids, and alkalis
• Hydrophobic membrane repels water for gas, vent, and solvent filtration

Housing Specifications

• Thermal-bonded construction keeps adhesives out of the fluid path
• Medical-grade polypropylene with broad chemical compatibility
• Stable across the full aqueous pH range in routine sample work
• Tough polypropylene body tolerates repeated handling at the bench

Filtering aggressive solvents and reagents through a filter that holds up to the chemistry keeps your sample prep reliable. Reliable solvent prefiltration clears particulates from your organic samples ahead of HPLC and UPLC injection. Send your application details to our technical service team and request a filtration product recommendation.

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

Bubble Point (psi)

9psi (IPA)

Connection Type

Luer-Lock/ Luer Slip

Construction

Polypropylene (PP)

Diameter

25mm

Filtration Area

2.8cm²

Flow Rate

130ml

Holdup Volume

< 100 µL

Material

Polytetrafluoroethylene (PTFE)

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

Wettability

Hydrophobic

• Cryogenic Fluids - Delivers consistent performance in extreme temperature environments, filtering cryogenic liquids with exceptional reliability
• Venting Applications - Prevents moisture and particulate intrusion in sterile tanks and vessels, ensuring a contaminant-free storage environment
• Aggressive Solvents - Clarifies chlorinated hydrocarbons and aromatics without membrane degradation, ensuring pure filtrate quality every time
• Pump Protection - Acts as a reliable hydrophobic barrier to protect vacuum pumps from corrosive moisture damage and particulate contamination
• Moisture Barrier - Protects sensitive electronic sensors and instruments from aqueous aerosols while allowing gases to pass freely
• Gas Filtration - Ensures sterility in air and gas lines for fermentation tanks, preventing the introduction of airborne contaminants