3M Filtrete Whole House Water Filtration Replacement Filter Model 4WH-QS-F01 Fits Model 4WH-Q Series. Reduces sand, soil, silt, rust and sediment based on 3M testing. Filtration including chlorine taste and odor for great tasting water. Basic filtration for 12-months filter life for 4 plus persons. Whole house water filtration system has a 10 GPM flow rate. Quick-change replacement.