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Thumbnail Filmstrip of PTFE Syringe Filters w/ GF Prefilter, 0.7/0.45um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 500/Pk Images
Featuring a multilayer construction that pairs a 0.7um glass fiber prefilter with a 0.45um PTFE membrane, this 25mm syringe filter is built to process high particulate content liquids without clogging. The graded prefilter captures sediment and grit ahead of the final membrane, letting you push viscous and heavily loaded samples through smoothly while protecting downstream instruments. The transparent polypropylene housing carries an effective filtration area of 4.63 cm squared and connects with a female luer lock inlet and male luer slip outlet.
Key PTFE Membrane Characteristics
- Naturally hydrophobic PTFE membrane suited to organic solvents, strong acids, and aggressive chemistries
- 0.45um pore size for sample clarification and particulate removal prior to analysis
- Upstream 0.7um glass fiber prefilter adds depth capacity, reducing clogging on difficult samples
- Broad chemical compatibility across a wide range of solvents
- Multilayer design processes significantly more sample volume than a single membrane filter
Key Construction Characteristics
- Clear polypropylene housing for visual monitoring of the filtration process
- Female luer lock inlet and male luer slip outlet connections
- Nonsterile, supplied 500 per pack
- 25mm membrane diameter with a 30mm housing diameter and 4.63 cm squared effective filtration area
- Rated to a maximum operating temperature of 90 degrees C and a maximum operating pressure of 75 psi
The graded prefilter and PTFE membrane work together to deliver fast, reliable filtration even on samples that would quickly blind a standard single membrane filter. By extending throughput per device, this filter helps maintain sample integrity and consistent results across demanding sample preparation workflows.
- Color
- Transparent
- Connection Type
- Luer-Lok/Luer Slip
- Construction
- Multilayer (glass fiber prefilter with PTFE membrane)
- Diameter
- 25mm
- Dimensions (W x D x H)
- 30mm housing diameter
- Filtration Area
- 4.63 cm²
- Inlet Connection
- Female Luer Lock
- Material
- Polytetrafluoroethylene (PTFE)
- Maximum Operating Pressure
- 75 psi
- Maximum Operating Temperature (°C)
- 90
- Membrane Brand
- ABLUO Supreme
- Membrane Color
- Transparent
- Outlet Connection
- Male Luer Slip
- Pack Count
- 500
- Pore Size (µm)
- 0.45
- Pre-filter Pore Size
- 0.7
- Prefilter (Yes/No)
- Yes
- Prefilter Material
- Glass Fiber
- Sterility
- Nonsterile
- Wettability
- Hydrophobic
- Heavily Loaded Sample Prefiltration The graded 0.7um glass fiber prefilter clears sediment and grit from high particulate liquids before the membrane, preventing premature clogging.
- Organic Solvent Filtration The hydrophobic PTFE membrane provides broad chemical compatibility for clarifying aggressive solvents, acids, and bases.
- HPLC and GC Sample Preparation The 0.45um membrane removes particulates to protect columns and instrumentation during analytical sample prep.
- Sample Clarification Removes suspended solids from difficult and viscous samples to yield clean filtrate for downstream analysis.
- Environmental Sample Prep Handles particulate-rich environmental matrices where a single membrane would blind quickly.
- Downstream Membrane Protection Acts as a high-capacity front end that extends the life of finer final filters in multistage workflows.