Tisch
PP Syringe Filters w/ 3 Pre-Filters, 0.22 um, 25mm, Nonsterile, 100/Pk SKU: SF18305

Polypropylene (PP) Syringe Filters - SF18305

Featuring advanced three-stage prefiltration combining polypropylene and glass fiber layers with economical 0.22µm polypropylene membrane technology, these filters deliver extended throughput capacity on a 25mm platform with 4.08cm² filtration area optimized for challenging particulate-laden samples. Autoclavable construction enables in-house sterilization at 121°C for 30 minutes. Multi-layer prefiltration architecture protects the sterile-grade membrane from premature fouling, supporting demanding biological and pharmaceutical applications where high dirt-load processing requires validated bacterial retention with exceptional flow maintenance throughout extended filtration cycles.

Key Polypropylene Membrane Characteristics

Sterile-grade 0.22µm retention provides validated bacterial removal for pharmaceutical and biological workflows requiring absolute contamination control throughout sample processing
Three-stage prefiltration system combines polypropylene and glass fiber layers that capture gross particulates before reaching the final membrane, extending operational life
Hydrophobic membrane design requires pre-wetting with a compatible organic solvent before aqueous sample filtration, establishing continuous flow pathways through the membrane structure
Autoclavable polypropylene platform allows users to sterilize filters in-house at 121°C for 30 minutes, supporting customized sterilization protocols and reducing inventory complexity
Economical multi-layer construction delivers cost-effective high-capacity filtration for routine laboratory operations while maintaining dependable performance across compatible chemical environments

Key Construction Characteristics

Enhanced 400µL holdup volume accommodates multi-layer prefiltration design while supporting 10-100ml processing, where extended throughput capacity justifies slightly higher sample retention
Thermally stable polypropylene housing maintains reliable performance up to 60°C maximum operating temperature, accommodating ambient and moderately elevated processing conditions
Dual Luer-Lok/Luer Slip connectivity ensures compatibility with standard laboratory syringes, eliminating adapter requirements and streamlining workflow integration
Generous 4.08cm² filtration area enables sustained 18ml flow rate performance at 87psi maximum operating pressure, despite challenging high-particulate sample matrices

Engineered to overcome your high-particulate challenges where standard filters foul rapidly, multi-layer prefiltration technology achieves extended processing capacity. Validated 14.50psi bubble point ensures bacterial retention confidence throughout demanding workflows. Autoclavable construction combined with enhanced dirt-load capacity supports your laboratory operations requiring economical yet dependable sterile filtration of challenging samples.

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