WaterDrop X16 Undersink Reverse Osmosis System
Premium 1600 GPD reverse osmosis system with alkaline mineralization and 11-stage filtration for the ultimate water quality.
Tankless RO model focused on fast daily filtration, compact under-sink layout, and modern high-flow convenience.

$329-449
Users who want fast tankless RO performance in a compact footprint
The WaterDrop G5P700 Tankless RO System is designed for homeowners seeking high-performance water filtration without sacrificing under-sink space. With its tankless design and modern profile, this system delivers fast, efficient filtration while keeping your kitchen uncluttered. It's a strong fit for families who want the convenience of on-demand purified water and a sleek, space-saving installation.
The G5P700 stands out for its fast filtration speed, providing a steady flow of clean water without the wait times typical of tank-based systems. Its multi-stage reverse osmosis process targets a wide range of common contaminants, ensuring water tastes fresh and is suitable for daily use. The high flow rate is especially noticeable when filling pots or bottles, making it practical for busy kitchens.
This review is based on hands-on installation and daily use in a family kitchen over several weeks. We evaluated flow rate, ease of installation, taste improvement, and the overall impact on under-sink space. Filter replacement was also tested to assess user-friendliness and ongoing maintenance requirements.
Installing the WaterDrop G5P700 is more involved than a basic pitcher or faucet filter, but the process is straightforward for those comfortable with under-sink plumbing. The tankless design means fewer bulky components, and the included instructions are clear. Most users can complete the setup in a couple of hours, though professional installation is an option if preferred.
Maintaining the G5P700 involves periodic filter replacements to ensure optimal performance. The system features a user-friendly filter replacement process, with indicators to remind you when it's time for a change. While filter costs are higher than basic carbon systems, the convenience and water quality benefits are notable.
The WaterDrop G5P700 is an excellent choice for anyone prioritizing fast, tankless RO filtration in a compact, modern package. While the upfront cost and installation are more involved than simpler filters, the benefits in speed, space savings, and water quality make it a worthwhile investment for most family kitchens.
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Independent certification standards used for filter performance claims.
Federal baseline guidance on drinking water quality and regulations.