The GE 30,000-Grain Water Softener System enhances the quality of water throughout your home for cleaner dishes, less water-heater scale buildup and potential energy savings. It has 95 grains per gallon maximum hardness-removal capacity and it also removes 8 PPM of iron. Handy features include programmable operation and a permanent memory in case the power goes out. This water softener even adapts to your usage patterns to help ensure you have soft water when you need it. GE water softeners help save on water and energy by using up to 50% less detergent for laundry and dishwashing (based on research conducted by the Water Quality Association (WQA) water softener benefits study, 2011) 30,000 grain capacity Efficiency: 5100 GPG Maximum hardness removal: 95 GPG Maximum iron removal: 8 PPM Salt storage capacity: 200 lbs. GE SmartSoft technology ensures there is always plenty of softened water available by learning a family's water-use patterns Days to empty indicator feature makes sure you never have to guess when to refill the salt tank