Fresenius Optiflux F250NRe Hemodialyzer, Single Use, Catalog Number: 0500325E, Advanced Fresenius Polysulfone. || Intended for use as an artificial kidney system to the treatment of patients with renal failure, fluid overload, or toxemic conditions by performing such therapies as hemodialysis, hemofiltration, hemoconcentration and hemodiafiltration.