Your Cart (0)
Thumbnail Filmstrip of Glass Fiber/PVDF Syringe Filters, 0.7/0.22um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 50/Pk Images
Featuring a graded glass fiber (GF/F) prefilter stacked ahead of a hydrophilic 0.22um PVDF final membrane, this dual-stage syringe filter handles heavily loaded and viscous samples that would quickly clog a single-membrane device. The 25mm membrane provides an effective filtration area of 4.63 cm², while the clear polypropylene housing measures 30mm in diameter and lets you visually monitor the sample as it passes. With Luer-Lok inlet and Luer Slip outlet connections, the device fits standard syringes for fast, low-force filtration. It is supplied nonsterile, transparent, and 0.7/0.22um rated, 50 filters per pack.
Key PVDF Membrane Characteristics
- Naturally hydrophilic membrane that wets readily with aqueous and alcohol-based samples for consistent flow.
- 0.22um final membrane delivers fine particulate removal and clarification ahead of analytical workflows.
- Low protein binding supports recovery of proteins and other large organic molecules of interest.
- Broad chemical compatibility across aqueous solutions, alcohols, and many organic solvents.
- Upstream 0.7um glass fiber prefilter reduces particle loading on the membrane, extending service life and increasing throughput on high-solids samples.
Key Construction Characteristics
- Clear polypropylene housing, 30mm diameter, for visual sample monitoring and chemical resistance.
- Luer-Lok inlet and Luer Slip outlet for secure connection to standard syringes.
- Effective filtration area of 4.63 cm² across a 25mm membrane.
- Maximum operating temperature 90°C (194°F) and maximum operating pressure 75 psi.
- Supplied nonsterile, 50 filters per pack.
The combination of a graded glass fiber prefilter and a fine PVDF membrane lets a single device process several times the volume of an unprefiltered filter, maintaining steady flow even with grit-laden or viscous samples. This protects downstream instruments and preserves sample integrity for reliable, reproducible results.
- Color
- Transparent
- Compliance Standards
- ISO
- Connection Type
- Luer-Lok/Luer Slip
- Construction
- Clear Polypropylene Housing
- Diameter
- 25mm
- Filtration Area
- 4.63 cm²
- Inlet Connection
- Female Luer Lock
- Material
- Polyvinylidene Fluoride (PVDF)
- Maximum Operating Pressure
- 75 psi
- Maximum Operating Temperature (°C)
- 90
- Outlet Connection
- Male Luer Slip
- Pack Count
- 50
- Pore Size (µm)
- 0.7/0.22
- Prefilter (Yes/No)
- Yes
- Prefilter Material
- Glass Fiber (GF/F)
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Heavily Loaded Sample Clarification The graded glass fiber prefilter captures bulk particulate so the PVDF membrane can clarify viscous or grit-laden samples without clogging.
- HPLC and uHPLC Sample Prep The 0.22um PVDF membrane removes fine particulates from solvents and extracts to protect columns and detectors.
- Particulate Removal from Difficult Samples The dual-stage design handles samples that would rapidly clog single-membrane filters, improving throughput.
- Protein and Cell Culture Sample Filtration Low-protein-binding PVDF supports recovery of proteins and clarification of cell culture supernatants.
- Aqueous and Alcohol Solution Filtration The naturally hydrophilic membrane wets readily with aqueous and alcohol-based samples for consistent flow.
- Environmental Sample Preparation Efficiently processes high-solids environmental samples while protecting downstream analytical membranes.