Hydro-Logic's Stealth RO100 Customized Reverse Osmosis Filter maximizes nutrient uptake and minimizes lock-out. Everything you need for a quick hook-up is included in the box. Produces up to 100 gallons per day of ultra-pure, low PPM water. Removes 98%+ of chlorine & contaminants. Wastes approximately 25% less than other RO systems. Customized for gardening & hydroponics.