Pura Disc 4 mm PTFE Syringe Filters, 0.2um, 500 Pk
Whatman SKU: 6783-0402

Whatman Puradisc PTFE Syringe Filters, 0.2 µm, 4 mm, 500/Pk - 6783-0402

Whatman applies over a century of filtration media expertise, manufacturing under the quality standards that established its products as global laboratory references. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. The PTFE membrane withstands aggressive organics that degrade other media while handling concentrated acids and bases and delivers sterilizing-grade gas and vent filtration. The polypropylene housing contributes minimal extractables to the filtrate while resisting degradation from routine sample matrices and routes flow to minimize backpressure in service. When sterile or particle-free preparation matters at the bench, the syringe filter delivers it with minimal added handling.

Technical Specifications

• Absolute pore size rating gives consistent results across protocols
• Filters aggressive organic solvents without swelling or breakdown
• Low extractables keep the chromatographic background clean
• Chemically inert against aggressive solvents, strong acids, and alkalis
• Stable across a wide operating temperature range for demanding methods

Housing Specifications

• Thermal-bonded construction keeps adhesives out of the fluid path
• Medical-grade polypropylene with broad chemical compatibility
• Low extractable contribution protects sensitive downstream analyses
• Optimized internal geometry minimizes backpressure in service

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. Reach out to the Tisch Scientific team for application support, volume pricing, and technical assistance with your filtration product selection.

For more information about chemical 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

4mm

Filtration Area

0.2cm²

Holdup Volume

<10µl

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

100°C

Pack Count

500

Pore Size (µm)

0.2

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 2ml

Wettability

Hydrophobic

• Cryogenic Fluids - Remains functional and integral even at extreme temperatures, protecting sensitive equipment from damage
• 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
• Aggressive Solvent Filtration - PTFE is chemically inert, making it the only choice for filtering strong acids and bases
• General Laboratory Filtration - Increases workflow efficiency by optimizing sample clarity without sacrificing flow rates
• Analytical Sample Prep - Optimized for Ensures data integrity by effectively filtering contaminants prior to instrumental analysis