PES Syringe Filter w/ Glass Fiber Prefilter, 0.45µm, 25mm, Hydrophilic, Nonsterile, 100/Pk
LabExact SKU: LE-IWT-ES10209

LabExact Polyethersulfone (PES) Syringe Filters, 0.45 µm, 25 mm, 100/Pk - LE-IWT-ES10209

Syringe filters replace the separate holder and vacuum apparatus of bulk filtration with a single disposable unit, eliminating cleaning between samples. PES handles strong bases and oils across a broad aqueous range while leaving proteins less surface area to contact and separates particulates precisely at its micron cutoff. The PP housing sustains efficient flow on viscous samples while resisting degradation from routine sample matrices and delivers a chemically clean filtrate to the downstream step. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Membrane Characteristics

• Ionic extractables from the membrane stay very low
• PFAS extractables test non-detectable under EPA Method 537.1
• Inherent hydrophilicity allows instant aqueous wetting with no pre-wetting step
• Absolute pore size rating holds consistent across every lot
• Pore structure integrity holds through autoclave cycles up to 126°C

Housing Characteristics

• Rated operating pressure supports filtration of high-resistance and viscous samples without housing distortion
• Withstands standard 121°C steam autoclave cycles without softening or structural distortion
• Stable across the full aqueous pH range in routine sample work
• The seal formed against the membrane blocks bypass at rated operating pressure

Juggling several filter types for one routine clarification eats up your bench time. General-purpose aqueous filtration supports the sample types you handle every day from reagent and buffer preparation through routine sample clarification. Start a live chat with the Tisch Scientific team for real-time updates on product availability, lead time, or your order status.

Sterilization Guidance

The housing supports customer autoclave sterilization at 121°C for 30 minutes.

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

Diameter

25mm

Environmental Express Equivalent

SF145E

Material

Polyethersulfone (PES)

Pack Count

100

Pore Size (µm)

0.45

Sterility

Nonsterile

Weight

0.168

Wettability

Hydrophilic

Whatman Equivalent

6876-2504

• Organic Carbon Testing - Clarifies water samples ahead of DOC and UV254 analysis while keeping organic carbon adsorption to the membrane minimal.
• Pesticide Residue Testing - PES membranes improve polar pesticide recovery in food-safety LC-MS/MS testing versus hydrogen-bonding nylon.
• PFAS Water Testing - PES filters process aqueous samples for EPA Method 1633A PFAS testing without added fluorinated background.
• Life Science Prep - Speeds processing of viscous biological solutions, improving laboratory workflow efficiency during busy sample prep days.
• Urine Drug Screening - Clarifies protein-poor urine samples for dilute-and-shoot LC-MS/MS toxicology testing without adsorbing target drug analytes.
• Nucleic Acid Recovery - Processes DNA and RNA extracts with minimal nucleic acid adsorption, preserving yield on the hydrophilic PES surface.