EDEN 6-Stage Alkaline Reverse Osmosis Water System - Removes contaminants, adds minerals and raises pH (100 GPD) 100 gallon per day TFC Reverse Osmosis (RO) membrane Automatic Shut-Off Valve and NSF listed 3.2 gallon storage tank alkaline-mineral-orp filter is stage 6 to raise pH and improve taste Chrome finish Upgraded Faucet included with its mounting hardware. Non air-gap type. Brine to Pure Water Ration 3:1 ratio (flow restrictor 800 mL)