Membranes

Membranes is the general section for GVS filter discs that are not split into a dedicated polymer subsection, with a strong emphasis on 47 mm formats for water analysis and microbiology. Laboratories filtering samples for membrane filtration methods look here first.

Among the 482 listings are 47 mm white, non-gridded, sterile PES discs at 0.22 µm and 0.45 µm, and PVP-treated polycarbonate track-etched discs at 0.2 µm and 0.45 µm, supplied in 200-count packs. Further polymers, diameters and pore sizes are listed throughout the section.

Choose PES for general aqueous filtration, and PCTE where a smooth surface is needed for particle capture and microscopy; then confirm sterility and grid requirements for your method. Lancetech Limited can quote on any GVS membrane and help narrow the list.