Syringe filtersSyringe filtersSyringe filters (combi), CHROMAFIL GF / PET, 25 mm, 1 µm / 0.45 µm



Combi syringe filters are recommended for solutions with a high load of particulate matter or for highly viscous solutions. These products combine a coarse glass fiber prefilter and a small-pore polyester (polyethylene terephthalate) membrane as main filter. The hydrophilic multipurpose PET membrane is suitable for polar as well as nonpolar solvents. It is the HPLC filter, especially suited for mixtures of water and organic solvents. All CHROMAFIL filters are autoclavable (121 °C and 1.1 bar for 30 min)!


Package unit 100 Piece(s)

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Hazardous material No
Method Filtration
Type Syringe filter (combi)
Housing type Wheel-like shaped housing
Hardware Polypropylene (PP) housing with filter membranes
Membrane type Combi – Glass fiber (GF) / Polyester (PET)
Membrane properties Hydrophilic – hydrophilic
Membrane diameter 25 mm
Membrane pore size 1 µm / 0.45 µm
Code type Color coded
Color code (top) Black
Color code (bottom) Orange
Inlet Luer lock (top)
Outlet Luer tip (bottom)
Sample volume 5-100 mL
Recommended application(s) General purpose HPLC columns packed with particles > 3 µm, GC, SFC, HPLC, especially suited for mixtures (mid-polar) of water and organic solvents, Suitable for aqueous, polar, hydrophilic as well as nonpolar samples, organic, hydrophobic solvents with high particle-load, TOC/DOC (ppm) determinations
Sterile No
Binding capacity (proteins) Moderate–high
Dead volume 80 µL
Filtration area 4.91 cm²
Storage temperature RT

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Packing units

100 pieces, 400 pieces