Whatman
Pura Disc 25mm PTFE Syringe Filters, 0.2um, 50 Pk SKU: 6784-2502

Polytetrafluoroethylene (PTFE) Syringe Filters, 0.2µm, 25mm - 6784-2502

Ensuring the biological integrity of sensitive media begins with reliable filtration, and the Polytetrafluoroethylene (PTFE) Whatman Puradisc, 25mm, Syringe Filter, 0.2µm, nonsterile 50/pk is engineered to deliver sterile effluents with every use. Leveraging the specific retention properties of Polytetrafluoroethylene (PTFE), this device offers a validated 0.2 barrier against microbial contaminants. To guarantee structural reliability, each unit undergoes strict quality control to ensure the housing and membrane seal withstand standard operating pressures without leakage. The result is a filtration solution manufactured in an ISO-certified facility that minimizes distinct interference, providing clean baselines for publication-quality data.

Key Polytetrafluoroethylene (PTFE) Membrane Characteristics

• Polytetrafluoroethylene (PTFE) membrane with hydrophobic (requires pre-wetting) or hydrophilic (if treated) affinity
• Low Protein Binding characteristics
• Extreme chemical resistance to aggressive solvents, acids, and bases
• Hydrophobic version acts as an effective moisture barrier
• Verified 0.2 retention rating for clarification

Key Housing Characteristics

• High-purity Polypropylene encapsulation housing
• Luer-Lok/ Luer Slip for secure fitting
• 4.2cm² effective filtration area
• <100µl holdup volume to minimize sample loss

When you integrate these filters into your daily standard operating procedures, you are choosing a workflow that prioritizes efficiency without compromising results. You invest significant resources into your samples; safeguarding them with a proven filtration barrier is a cost-effective insurance policy for your lab. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

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

Bubble Point (psi)

1.0 bar (15 psi) [IPA]

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.2cm²

Flow Rate

~20 (MeOH)

Holdup Volume

<100µl

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

Pore Size (µm)

0.2

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wetability

Hydrophobic

• Cryogenic Fluids - Remains functional and integral even at extreme temperatures, protecting sensitive equipment from damage
• Aggressive Solvent Filtration - PTFE is chemically inert, making it the only choice for filtering strong acids and bases
• Aerosol Sampling - The hydrophobic nature of PTFE allows for gas venting and air monitoring applications in harsh environments
• Organic Mobile Phases - Ideal for filtering 100% organic solvents in HPLC and GC workflows without any membrane degradation
• Analytical Sample Prep - Optimized to ensure data integrity by effectively filtering contaminants before instrumental analysis
• General Laboratory Filtration - Increases workflow efficiency by optimizing sample clarity without sacrificing flow rates