TRUSTED CERTIFICATION:The RS3800 Reverse Osmosis System is certified to NSF/ANSI 372 for lead-free materials and holds FCC certification, ensuring it meets strict safety and quality standards. The RESMO RO water filtration system uses advanced technology to significantly reduce harmful contaminants such as PFAS, total dissolved solids (TDS), chlorine, and unpleasant odors, ensuring pure water that meets the highest standards. 8-STAGE FILTRATION: The RESMO Reverse Osmosis System features an 8-stage purification process with a 0.0001-micron RO membrane. SGS-tested, it effectively reduces TDS, chromium, PFAS, radium, fluoride, arsenic, iron, calcium, chlorine, and other impurities, ensuring pure, safe water for your home. DUAL WATER OUTLET DESIGN: The RESMO RO system features a dual water outlet design with real-time water quality monitoring. This reverse osmosis system includes an LED indicator that provides instant feedback on water quality, ensuring the water you drink is safe and pure. Additionally, the filter life indicator alerts you when it’s time to replace the filter, ensuring consistent water quality over time. 800 GPD FAST FLOW RO SYSTEM: The upgraded RESMO RS3800 reverse osmosis system delivers 800 gallons of purified water daily. With a flow rate of 0.55 gal/min, it fills an 8-ounce glass in just 5 seconds, providing families with a constant supply of high-quality water. 2:1 PURE TO DRAIN: The RS3800 tankless RO system features an efficient 2:1 pure-to-wastewater ratio, generating only one cup of wastewater for every two cups of pure water. This reverse osmosis water filter system reduces CF/MRO filter replacement costs, saves up to 70,000 gallons of water annually, and is ideal for both drinking and washing vegetables—far more efficient than traditional purifiers. Installation Notes: The faucet requires a 1-1.4 inch hole, and the installation site requires an electrical outlet and a drain pipe. After installation, the purifier will automatically flush for 30 minutes and will automatically flush after each filter change. If you have any questions, please let us know in time. 800 GPD under-sink filtration system 【Alkaline & Remineralized RO Water】RESMO under sink RO system adopts 8-layer filtration with 0.0001 micron precision. Effectively gets rid of 1000+ kinds of contaminants (99.99%), including Chlorine, Fluoride, Lead & other heavy metals, Arsenic, Chloramine, TDS, limescale, VOCs and much more. The RS3800 Post filter balances the alkalinity of RO water and adjusts PH to more than 7.5, and restores essential minerals to your drinking water. One more step beyond pure water towards healthy! 【800 GPD High Capacity】 RESMO RS3800 RO water filter is capable of producing 800 gallons of RO water per day. The tested flow rate can reach up to 0.55 gallon per minute. The fast and stable water flow ensures that you can always fill up a 8oz cup with fresh drinking water in 5 secs! The large capacity can meet daily water needs of big families and small companies! 【2:1 Super Low Drain Ratio】Thanks to the innovative water saving technology, the under sink reverse osmosis systems features with 2:1 super low drain ratio. By producing 2 cups of ultra pure RO water, only 1 cup of waste water will be drained. Compared with most RO filters on market, save at least 8 Times of water! The system pays for itself in water saving along the usage. 【Real-Time TDS Reading & Filter Life Monitoring】The RO filtration systems features with a high-end smart panel, which clearly tells real-time TDS and remaining filter life of each cartridge. The built-in TDS sensor keep monitoring the quality of filtered water 24/7. The premium water quality is always visible, you know your water! The color-coded filter life indicators always remind you to replace the expiring filter cartridge in advance. The replacement only requires a Single Twist! 【Tankless, No Secondary Pollution】RESMO RS3800 RO water filter system with Tankless design prevents potential secondary contaminants brought by the pressure tank. The built-in pump guarantees the RO water running out from the dedicated faucet is fresh and on demand! Meanwhile, it saves at least 80% under sink space. The integrated design comes with less connection point, the installation is DIY friendly and can be done in a few minutes with the straightforward guide video.