Glass Fiber Syringe Filters, 3.1um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 100/Pk
GVS SKU: FJ25BNPGF031AH01PF

Featuring a naturally hydrophilic borosilicate glass fiber depth medium with a 3.1um nominal particle retention, this PFAS-free syringe filter delivers fast, high-throughput prefiltration of heavily loaded aqueous and organic samples. The glass fiber medium is housed in a 33mm transparent polypropylene body with a 25mm membrane diameter and provides an effective filtration area of 4.6 cm squared, making it well suited to protecting downstream membranes and analytical instrumentation. Luer-Lok inlet and Luer Slip outlet connections allow bidirectional sample injection or aspiration, and the unit ships nonsterile in packs of 100.

Key Glass Fiber Media Characteristics

• Naturally hydrophilic borosilicate glass fiber depth medium that wets out readily with aqueous solutions
• 3.1um nominal particle retention rated for high particulate loading rather than absolute screen filtration
• Depth structure captures sediment and grit throughout the medium, increasing dirt-holding capacity and flow
• PFAS-free construction supports reliable analysis of PFAS and other trace-level compounds
• Ideal as a prefilter to extend the life of finer downstream membranes

Key Construction Characteristics

• Transparent polypropylene housing, ultrasonically welded and integrity tested to eliminate filter bypass
• Luer-Lok/Luer Slip connections for compatibility with standard syringes and tubing
• 33mm housing diameter with a 25mm membrane and 4.6 cm squared effective filtration area
• Holdup volume under 100 microliters for efficient sample recovery
• Nonsterile, supplied 100 per pack, with each filter labeled with material and pore size

This filter delivers consistent, high-flow clarification of difficult, particle-laden samples while maintaining sample integrity. The welded, integrity-tested housing helps prevent bypass, and the labeled body keeps material and rating identifiable outside the original packaging. The result is reliable, repeatable prefiltration that protects sensitive downstream membranes and instruments.

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

Glass Fiber (GF)

Maximum Operating Pressure

80 psi

Maximum Operating Temperature (°C)

90

Outlet Connection

Male Luer Slip

Pack Count

100

Particle Retention

3.1 µm nominal

Pore Size (µm)

3.1

Sterility

Nonsterile

Wettability

Hydrophilic

• Heavily Loaded Sample Prefiltration The 3.1um glass fiber depth medium rapidly clarifies samples with high particulate content before finer filtration steps.
• Downstream Membrane Protection Serves as a prefilter to capture sediment and grit, extending the life of 0.45um and 0.22um membranes.
• Environmental Sample Preparation Handles turbid water and soil extract samples that would quickly clog screen membranes.
• HPLC and GC Sample Preparation Removes coarse particulates to protect chromatography columns and instrumentation.
• PFAS Analysis Workflows PFAS-free construction supports reliable trace-level analysis without sample contamination.
• Viscous and High-Sediment Solutions The high dirt-holding depth structure maintains flow through dense, hard-to-filter liquids.