Home Master HMF2SMGCC Whole House 2-Stage Water Filter with Multi Gradient Sediment and KDF85/Catalytic Carbon Massive filter housings with 1-inch ports for the strongest water pressure possible -- up to 10-gallons per minute Four gradient density sediment filter produces finer filtration and greater dirt holding capacity filtration from 25 to 1 micron 95,000-gallon capacity replaceable catalytic carbon filter provides a full year of clean water for a family of four Excellent purification -- removes up to 95 percent of sediment, chloramines, chlorine, chemicals, heavy metals, and other contaminants Oversize filters improve flow rate and reduce maintenance frequency