Obsessively engineered for clean, filtered water throughout your entire home. Reduces 97% of chlorine taste and odor from tap for 6 years or 600, 000 gallons. Perfect for households of 4 or more people. Improves skin and hair softness—reduce exposure to harsh chlorine that can cause excessive drying. Breathe better air—stops chlorine from evaporating into the air you breathe for cleaner air throughout your home. Eco-friendly—no drainage, back-flushing, or water waste. Includes one Central Water Filter, shut-off valve, nipple, and hose adapter.