3M Aqua-Pure Whole House Water Filtration System &ndash; Model AP801-C High-capacity water filter with unrestricted flow rate - an ideal water filtration system for larger homes and commercial applications The Aqua-Pure AP801-C Water filter system reduces particulate, rust, and the taste and odor of chlorine, helps improve the quality of cloudy, colored, or musty water Pressure-relief button makes water filter change-outs simple All system parts are manufactured from FDA CFR-21 compliant materials Cartridges last up to six months, an economical alternative to bottled water