Prefilter in glass microfiber (GF/GMF): Hydrophilic glass microfiber membrane, which can be used for solutions with high particle load or high viscosity, e.g. soil samples and fermentation media. The high chemical resistance of GF glass microfiber allows the filtration of aggresive solutions and solvents.

Polyester (Polyethylene terephthalate, PET): This hydrophilic multipurpose membrane is ideal for both polar and nonpolar solvents. Especially suited for mixtures of water and organic solvents. With no cytotoxicity, it does not inhibit the growth of microorganisms and higher cells.

• Filter diameter: 25 mm
• Pore size: 0.45 µm
• Colour (inlet): Black
• Colour (outlet): Orange