The 3MROP316 is designed for use on a cold-water line. This filter is 5 micron and the reverse osmosis process reduces and/or removes particulate, chlorine taste/odor, arsenic, TDS, parasitic protozoan cysts, radium, barium, cadmium, chromium, copper, fluoride, selenium, and other chemical and biological contaminants. This filter has a flow rate of 8.28gpd. Depending on water quality, it’s recommended to replace the 3MROP316 every 12 months.