NSF/ANSI CERTIFIED FILTRATION: The PCB filter of the Brio G20-U Reverse Osmosis Water Filtration System has 3 stages-non-woven PP, coconut carbon fiber, and coconut carbon block-and is certified against NSF/ANSI 42 for CTO reduction. The RO membrane, with a pore size of 0.0001 microns, is certified against NSF/ANSI 58 for TDS reduction. Together, these filters significantly reduce sediment, chlorine, iron, TDS, PFAS, atrazine, lead, arsenic, nitrates, fluoride, radium, and more. So, if you?re concerned about the quality of your tap water, you can count on the Brio tankless under sink RO system to produce delicious, reliably purified water for you and your whole family | SPACE-SAVING DESIGN: Sleek and modern, the Brio G20-U RO system measures 5.2? W x 16.5? H x 18.2? D and takes up approximately 30% of typical under sink space, preserving 70% for storage. The innovative tankless filtration design has an integrated system that?s leak-proof and resists recontamination, a hazard for a reverse osmosis under sink system with a tank | SMART FAUCET WITH 2 FILTRATION OPTIONS: The LED smart faucet features a TDS meter, so you know what the TDS level is in your RO-purified water, and a filter life reminder that shows the percentage of filter life left, so you know exactly when filters need to be replaced. Also, the Brio G20-U RO?s smart faucet has 2 two handles that let you control which water you dispense. One lever dispenses PCB-filtered water, which produces no wastewater and is great for washing produce and watering plants. The other lever dispenses RO-purified water, which is perfect for drinking and making baby formula. This tankless reverse osmosis system makes managing your home?s natural-resource usage easy | 700 GPD & 2:1 PURE-TO-DRAIN RATIO: The Brio water filtration system delivers a fast and robust water flow, producing up to 700 gallons of purified water per day and dispensing 1 cup of water in under 8 seconds, so purified refreshment is always available on demand. And compared to traditional 1:4 under sink systems, the Brio tankless system has a low 2:1 pure-to drain ratio, which means that for every 2 cups of purified water dispensed, only 1 cup of wastewater is produced, saving over 300% on water waste compared to a 1:4 under sink tank system | FILTER REPLACEMENT: Depending on the quality of your water source, the PCB filter should be replaced every 6 to 12 months. Put B0B638RQD9 in the search bar for the PCB replacement filter. The RO filter should be replaced every 12-24 months. Put B0B5YHK23J in the search bar for the RO replacement filter. You won?t need tools or have to move the G20-U to change the filters. Filters are removed and installed from the front with a quick quarter turn | WHAT?S INCLUDED: RO under sink filtration system, dual-levered smart faucet, PCB filter, RO filter, installation kit, user manual