💦 Drink Smart, Live Well! Install in just 30 minutes—no tools required! Stay informed with a designer faucet that tracks TDS levels and filter life. Maximize your under-sink space with a sleek, tankless system. Experience 600 gallons per day of pristine water, effortlessly. Reduce waste with a low drain ratio of 2:1—good for you and the planet! 600 GPD 2:1 drain ratio Easy installation The Waterdrop D6 Reverse Osmosis Water Filter is a cutting-edge under-sink system that delivers 600 gallons of purified water per day with a low drain ratio of 2:1. Featuring a smart faucet with real-time monitoring, a compact tankless design, and easy installation, this system ensures you enjoy clean, safe drinking water while saving space and reducing waste.