Microplus cellulose nitrate membranes: Membrane filters especially developed for use in microbiological applications. Great mechanical resistence. High flow rate. Ideal for samples with a high content of particles or viscous samples. Sterile, individual container. With a high contrast grid (3,1mm). The STL filter is used with the WHATMAN™ membrane dispenser (Cytiva).rrME membranes: Suitable for use in microbiology. Economical. Specific for aqueous solutions. Hydrophilic. Sterile, in individual packaging.rrNucleopore® Track-Etched PC membranes: Recommended for use in water control, air analysis, parasitology, bio-analysis, cellular biology, environmental analysis, epifluorescence microscopy. Legionella culture. Autoclavable.rrCyclopore® Track-Etched PC membranes: Their high affinity for staining provides a great optical contrast that makes microscopical observations easier. Autoclavable. Useful in different applications: electron microscopy, epifluorescence microscopy and general microscopy; yeast, mould ,Giardia, Legionella, coliform and canine microflora counting; in vitro diagnostics and general filtration: water analysis, environmental hygiene, blood and cell filtration, and DNA studies.