Tisch
GF Syringe Filters w/ 3 Pre-Filters, 2.7 um, 25mm, Nonsterile, 100/Pk SKU: SF18301

Glass Fiber (GF) Syringe Filters - SF18301

The SF18301 features a three-stage GF+PP+GF prefiltration architecture that processes three to seven times more sample volume than standard syringe filters through progressive particle capture mechanics. This 2.7 µm glass fiber membrane system prevents backpressure buildup by distributing particle loading across multiple layers before reaching the primary membrane, maintaining fast flow rates even with viscous fluids and high-solids samples. Your laboratory gains operational efficiency from this 25mm configuration that handles samples up to 50 ml while the borosilicate glass fiber construction resists aggressive chemicals across environmental analysis, bioprocess monitoring, and industrial quality control applications requiring robust coarse prefiltration.

Key Membrane Characteristics

• 2.7 µm glass fiber membrane with 3-stage prefilter delivers exceptional loading capacity through progressive multilayer filtration architecture
• 4.08 cm² filtration area in the 25mm diameter configuration processes 50 ml throughput for moderate-volume sample preparation
• Borosilicate glass microfiber construction provides broad chemical compatibility across acids, bases, and organic solvents without contributing extractables
• Hydrophilic surface characteristics facilitate immediate aqueous sample processing without requiring pre-wetting procedures in your workflows
• 250-290 µm membrane thickness creates a depth filter structure that maintains flow rates as particulate loading accumulates during processing

Key Construction Characteristics

• Robust polypropylene housing maintains structural integrity under operating pressures up to 87 psi during extended filtration operations
• 400 µL holdup volume accommodates the multilayer prefilter design while maintaining reasonable sample recovery for your applications
• Dual luer-lok/luer slip inlet and outlet connections provide compatibility with standard syringes and automated liquid handling equipment
• Autoclavable at 121°C for 30 minutes to support your in-house sterilization protocols when biological applications require it

Your coarse prefiltration workflows benefit from the three-stage system that prevents membrane blocking and maintains consistent flow characteristics. The progressive particle capture architecture handles challenging sample matrices that would clog standard filters prematurely while processing capacity exceeds conventional designs by three to seven times. This 25mm format balances throughput with manageable holdup volume while autoclavable construction and broad chemical resistance support diverse applications across pharmaceutical, environmental, and industrial testing laboratories.

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

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene (PP)

Diameter

25mm

Filtration Area

4.08cm²

Holdup Volume

400µl

Material

Glass Fiber (GF)

Maximum Operating Pressure

87psi

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

250-290µm

Pack Count

100

Pore Size (µm)

2.7

Prefilter (Yes/No)

Yes

Prefilter Material

GF+PP+GF

Sterility

Nonsterile

Sterilization

Autoclave 121°C for 30min/ gamma 25kGy

Volume Throughput (ml)

50ml

Weight

0.70

Wetability

Hydrophilic

• Turbid Water Analysis - Process sediment-laden environmental samples before trace metal determination or organic contaminant extraction procedures
• High-Density Fermentation - Clarify bioreactor samples with elevated cell concentrations before HPLC or spectroscopic analysis in bioprocess monitoring
• Industrial Effluent Testing - Reduce suspended solids from wastewater samples before COD or heavy metal quantification in compliance laboratories
• Agricultural Sample Prep - Filter plant tissue homogenates and soil extracts containing particulates before pesticide or nutrient analysis programs
• Viscous Fluid Processing - Clarify polymer solutions and coating formulations before rheology measurements or quality control testing in manufacturing
• Biological Extract Filtration - Remove coarse debris from tissue homogenates before immunoassays or protein quantification in research laboratories