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Thumbnail Filmstrip of Glass Fiber Syringe Filters, 0.7um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 500/Pk Images
Featuring a hydrophilic borosilicate glass fiber depth medium with a 0.7um nominal particle retention, these 25mm syringe filters deliver fast prefiltration of heavily loaded aqueous and organic samples. The glass fiber media captures particulates throughout its depth rather than at a single screen surface, providing high dirt-holding capacity and high flow with low resistance. A transparent polypropylene housing terminates in a Female Luer Lock inlet and a Male Luer Slip outlet (Luer-Lok/Luer Slip) for secure syringe connection and convenient downstream dispensing. Each device is supplied nonsterile in a pack of 500.
Key Glass Fiber Media Characteristics
- Naturally hydrophilic borosilicate glass fiber that wets readily with aqueous solutions
- Depth filtration structure provides 0.7um nominal particle retention rather than an absolute screen pore size
- High particulate loading capacity suited to turbid, viscous, and sediment-heavy samples
- Delivers high flow rates with low back pressure, increasing throughput and speed of sample preparation
- Effective as a prefilter to protect and extend the life of downstream membrane filters
Key Construction Characteristics
- Transparent polypropylene housing for broad chemical compatibility and visual monitoring of the filtrate
- Female Luer Lock inlet and Male Luer Slip outlet (Luer-Lok/Luer Slip) connection
- Maximum operating pressure of 75 psi and maximum operating temperature of 90 C
- Lower hold-up volume from an improved flow channel design for better recovery of small or costly samples
- Nonsterile, supplied 500 per pack
This filter maintains reliable, reproducible flow when processing samples that would quickly clog a fine membrane, protecting sensitive downstream filters and analytical instruments. The depth structure withstands high particulate loads while preserving sample integrity, helping ensure clean filtrate for the next step in your workflow.
- Color
- Transparent
- Connection Type
- Luer-Lok/Luer Slip
- Construction
- Transparent Polypropylene Housing
- Diameter
- 25mm
- Inlet Connection
- Female Luer Lock
- Material
- Glass Fiber (GF)
- Maximum Operating Pressure
- 75 psi
- Maximum Operating Temperature (°C)
- 90
- Outlet Connection
- Male Luer Slip
- Pack Count
- 500
- Pore Size (µm)
- 0.7
- Prefilter (Yes/No)
- Yes
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Heavily Loaded Sample Prefiltration Removes high concentrations of particulates and sediment from turbid samples before final membrane filtration.
- Downstream Membrane Protection Serves as a prefilter that extends the life of 0.45um and 0.22um membranes by reducing premature clogging.
- Environmental Sample Preparation Clarifies water, soil extracts, and other field samples with high suspended solids prior to analysis.
- HPLC and GC Sample Clarification Provides initial particulate removal from viscous or particulate-rich extracts ahead of chromatographic prep.
- Biological Fluid and Buffer Clarification Reduces particulate load in cell culture supernatants, protein solutions, and buffers before further processing.
- High-Throughput Filtration Supports rapid processing of large sample sets where high flow and low back pressure are required.