WW7100470, Watts, 13 In Kwik-Change Uf Membrane Replacement Cartridge

This 13 inch Kwik-change replacement membrane filter uses ultra filtration technology. It is a membrane filtration process which uses standard home water pressure to push water through its semi permeable membrane. Suspended particles and materials of high molecular weight are unable to pass through the .3 micron UF membrane, leaving you with only fresh clean water and dissolved minerals to pass through.