Hydro-Logic created the Stealth-RO100 reverse osmosis water filtration system to help gardeners maximize plant nutrient uptake and get the best possible growing results. This system removes over 98 percent of lockout-inducing contaminants from water and is ideal for hydroponic and traditional hobbyists growing organically. The three-stage Stealth-RO100 comes with everything needed to filter up to 100 gallons of water per day including carbon filter, sediment filter, reverse-osmosis membrane, mounting kit, hoses, and complete instructions. This unit has a 3:1 water recovery ratio. Limited one-year manufacturer’s warranty.