Whirlpool WHA4FF5 Large Capacity Premium Carbon Whole Home Replacement Water Filter, Dark Grey Flow And Capture Technology (FACT) - filters provides better flow, higher levels of filtration and longer life than most large capacity whole house water filters Reduces sediment, chlorine taste and odor, sand, silt and rust Premium carbon filtration provides better tasting water throughout your home Less than 1 micron filter  the lower the micron rating the more particles or contaminants removed by a whole house filter 6 month filter life meaning you only need to replace your filter twice a year