The Waterdrop WD-D6-B Reverse Osmosis Water Filter System is an advanced composite reverse osmosis filter, featuring a 5-in-1 filter. Enjoy over 600 gallons per day of cleaner, safer drinking water. The WD-D6-B water filter system comes with a smart faucet that is made of lead-free, brushed nickel that has a smart display, showing the real-time TDS level and the remaining life of the filter. The tankless design prevents bacteria and viruses from building up. Easily install in less than 30 minutes.