The Brio AQUUS Tankless RO Undersink Filtration System 600GPD is a tankless reverse osmosis system designed for installation under a sink. Because it is tankless, it occupies less space than traditional tank-based RO systems and dispenses water on demand through a dedicated smart faucet.
The system provides two water options through a dual-lever faucet: filtered water, suitable for tasks such as rinsing produce and cooking, and reverse osmosis purified water for drinking. Water passes through a two-cartridge filtration set: a PCB cartridge, which removes suspended solids such as mud, sand, and rust along with chlorine and unpleasant tastes, odors, and colors; and an RO membrane cartridge rated at 0.0001 micron, which removes up to 99% of contaminants, including total dissolved solids, fluoride, and heavy metals such as lead and arsenic. The system produces up to 600 gallons of purified water per day and operates at a 1.5:1 pure-to-drain recovery ratio.
The included smart faucet has a digital display that shows a total dissolved solids (TDS) reading and a filter-life indicator. The filtration unit installs under the sink and connects to the cold water supply, the smart faucet, and a drain line. Both filter cartridges are front-facing for tool-free replacement, and the unit has an indicator panel with filter-status lights and dedicated reset and flush buttons. The PCB cartridge is rated for 6 to 12 months of use and the RO membrane for 12 to 24 months, depending on water usage and source water quality.
Installation
Undersink · "Cold water supply via included feedwater adapter (1/2-inch; 3/8-inch adapter nut included), 1/4-inch quick-connect PE tubing; requires a dedicated smart faucet and an RO drain-line connection to a standard 1.5-inch OD drain pipe via the included drain saddle" · Requires power