LabExact
PTFE Syringe Filter w/ Glass Fiber Prefilter, 0.22µm, 25mm, Luer-Lok, Nonsterile, 100/Pk SKU: LE-IWT-ES10195

Featuring hydrophobic PTFE membrane technology with integrated glass microfiber prefilter delivering superior filtration performance for demanding analytical applications. Glass fiber prefilter construction reduces particle loading experienced by the membrane final filter and extends service life while the 0.22µm PTFE membrane provides absolute retention for critical sample preparation. Ultrasonically bonded housing with Luer-Lok connection ensures leak-proof operation and exceptional unit-to-unit reproducibility for your most challenging chromatography and sample preparation workflows.

• Hydrophobic PTFE construction delivers exceptional chemical resistance to solvents, acids, and bases for aggressive sample matrices
• 0.22µm absolute pore rating provides reliable particle retention while maintaining optimal flow characteristics
• Superior organic solvent compatibility enables direct filtration of nonpolar liquids and viscous HPLC samples without pre-treatment
• Inherent hydrophobic properties ideal for gas filtration, aerosol sampling, and moisture barrier applications
• Can be converted to hydrophilic operation through alcohol pre-wetting followed by water flush for aqueous applications

• Glass fiber prefilter enables greater total throughput for fluids containing high levels of suspended solids compared to filters without prefilters
• Ultrasonically bonded polypropylene housing prevents bypass and ensures structural integrity under pressure
• Concentric funnel-shaped barrel design increases sample volume capacity while decreasing back pressure during filtration
• 25mm diameter configuration optimizes filtration area for 10-100mL sample volumes with enhanced throughput
• Clear filter media identification inscribed on barrel eliminates confusion during multi-sample processing

These PTFE syringe filters achieve exceptional performance for HPLC sample preparation, chromatography solvent degassing, and viscous organic sample processing applications. Outstanding chemical compatibility with harsh solvents accelerates your analytical workflows while the integrated glass fiber prefilter maximizes membrane life during particulate-laden sample processing. Perfect for aerosol sampling protocols, vacuum pump line protection, and venting applications where moisture barriers are critical to maintaining system integrity and analytical precision.