3M Filtrete Sump Style Whole House Water Filtration System 3WH-STD-S01, OPEN BOX Unit has a couple scuff marks on the outside of the plastic, but otherwise looks unused as the filter is still wrapped in factory plastic. Unit also includes the mounting screws. Enjoy cleaner water throughout your home. This system reduces sand, sediment, rust and silt and is ideal for two bathroom homes. Choose from a range of genuine Filtrete Standard Capacity Whole House filters to meet your filtration needs. Upgrade with higher performance replacement filters. Its whole house filtration capability helps protect expensive appliances like dishwashers, water heaters, clothes washers and more. The system is certified by WQA to NSF Standard 42. Cleaner Water Filtration reduces sand, soil, silt, rust and sediment based on 3M Testing. Try Great Taste Filtration for even more filtration including Chlorine Taste and Odor. Model 3WH-STD-S01 includes a 3 Month Filter. Replacement filters are available in String Wound, Carbon Wrap, and Grooved filters.