The WaterMaker Mini is the smallest reverse osmosis system you can buy. It attaches simply and easily to your kitchen faucet and can produce up to 20 gallons of water per day. There are no heavy bottles to lift, no trips to the store and no permanent plumbing connections required. A special quick-connect aerator is included with the purchase of the WaterMaker Mini. Connect the Mini to the kitchen faucet for a few hours and make enough water for several days. The WaterMaker Mini is stored in the refrigerator when not in use.