2gallon,3.2gallon,11gallon,20gallon and 3.2gallon

Water goes through a reverse osmosis membrane very slowly and people don't have the patience to wait a long time to get a cup of water. For this reason the residential RO units need a water storage tank to store the purified water. The RO tanks can delivery stable and constant water flow when the faucet is opened. The concern that pollutants might come from air or animals with the use an opened tank favors the use of a closed expansion tank. To avoid bad odors from diaphragm, all of our diaphragms are post-cured before assembly, to eliminate the possibility of odors from the tank, our tanks are CE approved.