Filtrete High Performance Whole House Filter, Large Capacity. Replacement filter for Filtrete(TM) High Performance Whole House System Reduces sand, soil, silt, rust and sediment based on 3M Testing. Try Standard Filtration for even more filtration including Chlorine Taste and Odor for great tasting water. 1/4 turn change for easy, filter replacement 12 month filter life for 4+ persons / +3 bathroom households Space saving design