ORBIFILT filter modules are an alternative to standard depth filtration using filter sheets. In this case, identical filter sheets are incorporated in the form of a lenticular module, which makes one compact piece. The sheets are attached to the drainage body in
a lenticular manner on both sides and are thus secured to each other. The joint is equipped with sealing rings, which prevent the filtered liquid from being contaminated by unfiltered liquids. The complete module can be used in a closed filtration system.