MAUNAWAI® UF Replacement Cartridge for Eco Shower Filter With the UF replacement cartridge, your MAUNAWAI® Eco Shower Filter remains reliably effective.The ultra-fine hollow-fiber membrane physically removes suspended particles and germs—including Legionella bacteria, which can cause illness if inhaled. The UF membrane (hollow fiber membrane 0.1–0.01 μm) filters out suspended particles and unw...