Tisch
GF Syringe Filters w/ 3 Pre-Filters, 1.6um, 25mm, Nonsterile, 100/Pk SKU: SF18300

Glass Fiber (GF) Syringe Filters - SF18300

The SF18300 combines a 1.6 µm glass fiber membrane with a three-stage GF+PP+GF prefiltration architecture engineered for maximum particle loading capacity in coarse prefiltration applications. Borosilicate glass microfibers create a depth filter matrix with 250-290 µm thickness that processes samples up to 50 ml while the multilayer prefilter system progressively captures particles before they reach the primary membrane. This 25mm technical configuration serves environmental laboratories processing turbid water samples, bioprocess facilities clarifying high-cell-density fermentation broths, industrial operations filtering viscous fluids with suspended solids, and agricultural testing programs analyzing sediment-laden field extracts where standard single-membrane filters fail prematurely.

Key Membrane Characteristics

• 1.6 µm glass fiber membrane with 3-stage prefilter delivers exceptional dirt-holding 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 resists aggressive chemicals, including strong acids, bases, and organic solvents, across diverse applications
• Hydrophilic surface properties enable immediate aqueous sample processing without requiring pre-wetting steps in your protocols
• 250-290 µm membrane thickness creates a depth filtration structure that maintains flow rates as particulate loading accumulates during operations

Key Construction Characteristics

• Durable polypropylene housing withstands operating pressures up to 87 psi for demanding filtration applications and viscous sample matrices
• 400 µL holdup volume accommodates the multilayer prefilter design while maintaining reasonable sample recovery for your processing needs
• Dual luer-lok/luer slip inlet and outlet connections provide compatibility with standard syringes and automated liquid handling systems
• Autoclavable at 121°C for 30 minutes to support your in-house sterilization protocols when biological applications require it

Quality assurance comes from the three-stage prefilter system that distributes particle capture progressively through multiple layers before final filtration. Your coarse prefiltration operations benefit from extended service life even with heavily particulate samples while maintaining consistent flow characteristics throughout processing runs. The 25mm format balances throughput capacity with manageable holdup volume while broad chemical resistance and autoclavable construction support diverse applications across pharmaceutical, environmental, and industrial testing laboratories requiring reliable particle removal before downstream analytical instrumentation.

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)

1.6

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

• Environmental Water Analysis - Remove sediment and suspended solids from turbid field samples before trace metal or organic extraction procedures
• Fermentation Monitoring - Clarify high-cell-density bioreactor samples before HPLC or spectroscopic analysis in biopharmaceutical process development
• Industrial Effluent Testing - Reduce particulate loads from wastewater samples before COD determination or heavy metal quantification programs
• Agricultural Extract Prep - Filter plant tissue homogenates and soil extracts containing suspended solids before pesticide or nutrient analysis
• Paint Quality Control - Remove pigment aggregates from coating formulations before rheology measurements or quality assurance testing in manufacturing
• Biological Fluid Processing - Clarify serum or tissue homogenates containing cellular debris before immunoassays or protein measurements in laboratories