Professional basic/replacement installation included, see your local store for details; 10 year warranty available; Ideal for households of 1-6+ people; Maximum water hardness of 160 gpg; Removes extremely high levels of ferrous (clear water) iron, up to 12ppm; 6th Sense Technology learns your water usage and minimizes salt consumption; Ultra-flow valve provides up to 15% greater water flow than standard systems, convenient for larger homes; Extends the life of water using appliances and makes them operate...