Pureline Replacement for MWF Water Filter, Smartwater MWFP, Kenmore 46-9991, Models MWFP, MWFINT, GWF, GWFA, Refrigerator Water Filter. NSF Certificate

Innovative Filtration Technology: Our refrigerator water filters use a state-of-the-art 3-step filtration process consisting of 2 pore-sized micron filters and an activated carbon block that enhances water quality and taste. Firstly, the water goes through a mechanical filter that captures medium-size elements then passes through 2 ionization filters that filter out large materials and remove the smallest impurities and chlorine, leaving the water pure and clean.