CleanWater4less Alkaline Water Ionizer Machine 7 Stage Water Treatment: Dual Filters (Carbon Pre-filter, and UF Membrane with Silver Coated GAC for Superior Bacteria Sterilization) Advanced 7-plate Technology: 7 platinum coated titanium,strong, energy-efficient plates 2 Automatic Self-Cleaning Modes: Real time refresh (.2L flush every 10L), and Dual Automatic reverse polarity cleaning. 8 Levels: 5 Alkaline, 1 Purified, 2 Acidic. Complete PH Spectrum (3.5-11.0 PH), ORP Range +600 to -850mV Variable Selection Touch-Screen, 2-Year No Questions Warranty & Limited Lifetime Warranty