The Cuno AquaPure RO5500 Reverse Osmosis System provides superior drinking water at less cost than bottled water. Features an advanced four stage filtration process, long reach faucet, 2.4 gallon tank and necessary water/drain connections included. Filtering process consists of a 5 micron sediment & rust filtration, activated carbon filtration, reverse osmosis, and final activated carbon polishing filtration. Universal system design allows for use on chlorinated and non-chlorinated water plus municipal or well systems. High flux, thin film composite RO membrane provides a high quality production rate of 12-18 gallons of water per day.