Water goes through a reverse osmosis membrane slowly, so 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.

3 Gallon Ro System Tank Features：

1. Made of premium food-grade material, anti-aging, eco-friendly and available for long service life.

2. Featuring 3 gallon metal pressurized tank.

3. Comes with high quality imported air valve core which reduces the risk of air leakage.

4. Suitable for reverse osmosis water purification system.

3 gallon ro system tank Specification: