LabExact
PTFE Syringe Filter w/ Glass Microfiber Prefilter, 0.45µm, 25mm, Nonsterile, 100/Pk SKU: LE-IWT-ES10196

Featuring hydrophobic PTFE membrane technology with integrated glass microfiber prefilter delivering exceptional particle retention and extended service life for demanding analytical applications. The glass microfiber prefilter reduces particle loading experienced by the membrane final filter and consequently extends the service life, while the 0.45µm PTFE membrane provides reliable filtration of nonpolar liquids, gases, and viscous organic solutions. Ultrasonically bonded construction with clearly inscribed filter media identification ensures consistent performance and reduces the risk of filter selection errors during critical analytical workflows.

Key PTFE Membrane Characteristics

Inherently hydrophobic PTFE membranes are ideal for filtration of nonpolar liquids and gases while maintaining chemical compatibility with harsh solvents
Excellent chemical compatibility for filtering harsh chemicals that destroy other membrane materials; resistant to solvents as well as acids or bases
Membrane can be made more hydrophilic by flushing with alcohol, followed by water for versatile application compatibility
0.45µm pore size delivers precise particle retention while optimizing flow rates for sample processing efficiency
Use to filter viscous organic-based HPLC samples or filter and degas chromatography solvents with exceptional reproducibility

Key Construction Characteristics

25mm diameter format accommodates standard syringe filter holders and provides optimal filtration area for laboratory workflows
Luer-Lok® and pressure fitting compatibility ensures secure connections and prevents sample loss during filtration
Concentric funnel-shaped barrel design increases sample volume capacity while decreasing back pressure for improved throughput
Ultrasonic bonding eliminates adhesive contamination risks and maintains filter integrity under pressure applications
Clear media type inscription on barrel prevents filter selection errors and ensures traceability in analytical protocols

LE-IWT-ES10196 filters achieve excellent unit-to-unit and lot-to-lot reproducibility, maximizing your analytical consistency across extended sampling campaigns. Ideal for aerosol sampling and can be used as a moisture barrier for venting applications and vacuum pump line protection. Nonsterile configuration delivers cost-effective performance for routine laboratory applications requiring reliable particle removal from organic solvents, HPLC mobile phases, and gas chromatography sample preparation protocols demanding both chemical resistance and consistent filtration performance.