ISpring 3 Stage Whole House Water Filtration System WGB32B (OB). Protect your family and household appliance from sediment, chlorine and more. Removes up to 99% of chlorine from water as well as sediment, rust, herbicides, industrial solvents and various other contaminants. Installed at the main water supply line in order to treat all the water in your home. Filter capacity 100,000 gal. Of water, enough for a family of four with clean water for a full year. Filter cartridges individually wrapped for freshness.