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Thumbnail Filmstrip of PES Syringe Filters, 0.22um, 25mm, Luer-Lok/Luer Slip, Nonsterile, Clear, 100/Pk Images
Featuring a naturally hydrophilic polyethersulfone (PES) membrane rated at 0.22um, this syringe filter delivers fast, low-binding filtration of aqueous, biological, and alcohol-based solutions. The 25mm membrane is sealed within a transparent 33mm polypropylene housing with a Female Luer Lock inlet and Male Luer Slip outlet for secure syringe attachment and controlled dispensing. The asymmetric PES structure provides high throughput while minimizing protein loss, making it well suited to sensitive analytical and life science sample preparation. Filters are supplied nonsterile in a pack of 100.
Key PES Membrane Characteristics
- Naturally hydrophilic structure wets out readily with aqueous and alcoholic media without pre-wetting
- Very low protein and drug binding to maximize recovery of valuable samples
- Asymmetric pore structure supports high flow rates and increased throughput
- Broad chemical compatibility across aqueous, organic, and alcohol solutions
- Low extractables for clean, reliable analytical results
Key Construction Characteristics
- Transparent polypropylene housing, ultrasonically welded for integrity
- Female Luer Lock inlet and Male Luer Slip outlet (Luer-Lok/Luer Slip)
- 25mm membrane diameter with a 33mm housing diameter and an effective filtration area of 4.6 cm squared
- Holdup volume under 100 microliters and a maximum operating temperature of 90 degrees C (194 degrees F)
- Nonsterile, supplied 100 per pack; PFAS-free verified
This filter maintains consistent flow and sample integrity throughout the filtration process, helping protect downstream instrumentation and columns. The low-binding PES membrane preserves analyte concentration for accurate, reproducible results. Each filter is individually labeled with its membrane material and pore size for easy identification outside the original packaging.
- Color
- Transparent
- Connection Type
- Luer-Lok/Luer Slip
- Construction
- Polypropylene housing, ultrasonically welded
- Diameter
- 25mm
- Filtration Area
- 4.6 cm²
- Holdup Volume
- <100 µL
- Inlet Connection
- Female Luer Lock
- Material
- Polyethersulfone (PES)
- Maximum Operating Temperature (°C)
- 90
- Membrane Color
- Transparent
- Outlet Connection
- Male Luer Slip
- Pack Count
- 100
- Pore Size (µm)
- 0.22
- Prefilter (Yes/No)
- No
- Sterility
- Nonsterile
- Vent (Yes/ No)
- No
- Wettability
- Hydrophilic
- Sterile Filtration Prep Removes bacteria and fine particulates from buffers, media, and aqueous solutions at the 0.22um rating.
- HPLC and UHPLC Sample Preparation Clarifies samples prior to injection, protecting columns and improving analytical reproducibility.
- Protein and Biological Fluid Filtration Low protein binding PES maximizes recovery of proteins and enzymes in life science workflows.
- Tissue Culture Media Filtration Clarifies and prepares cell culture media and reagents for sensitive biological applications.
- Buffer and Reagent Clarification Delivers fast, hydrophilic filtration of aqueous buffers and reagent solutions.
- Microbiology Sample Processing Supports clarification and preparation of aqueous samples for downstream microbiological analysis.