Filtration plates are used in their simplest form to remove particulate matter from liquid. Either the particulate matter or the filtrate is needed for further study. Porvair 96-well filter, 400µl, microplates with PES Filter material. Please Note: Other Filtration plates are available. We have optimized filter plates for applications including cell harvesting, DNA separations, binding studies, Plasmid isolation, general filtration and sample clean-up.