The Hydro Logic Stealth 100 can produces up to 100 GPD (gallons per day) of ultra-pure, low PPM water that your plants will love. It removes 98%+ of chlorine & contaminants that can kill your beneficial microbes. The Stealth series is designed to waste approximately 25% less water than other Reverse Osmosis (RO) systems. The Hydrologic Stealth 100 comes complete with everything you need to for a quick hook-up (Filter wrench, drain and inlet line, garden hose connector, etc). The Hydro Logic Stealth 100 is customized for demands of the gardening & hydroponics industries. Note: the performance of the stated flow rates are based on 77 F, 60 psi, 550 ppm inlet water. Booster pumps are available to help achieve this flow rate. 3 Stage RO Unit 1 RO Membrane Carbon Filter Cleanable sediment filter Automatic shut-off Size: 15"H x 14"W x 5"D 1 year warranty Hydro-Logic Filter Replacement Schedule: Membrane Element: Every 6 months to 2 years dependent of use and input water quality. Green Coconut Carbon Filter: Every 1,250 gallons of purified water. Sediment Filter Pleated: Clean regularly, change every 6-12 months. Low Pressure, Cold Water, High Flow membrane: Every 6 months to 2 years dependent of use and input water quality. KDF85/Catalytic Carbon Filter: Every 2,000 gallons of purified water.