The Conybio Nano Alkaline Water Purifier is a cutting-edge 4-element water filter system that delivers 1.8 to 2 liters of high-tech alkaline water per minute. To ensure optimal performance, it requires a minimum water pressure of 1 bar. This purifier is certified by both the Water Quality Association and NSF for quality and safety. The package includes an installation card, making setup a breeze, and it operates without the need for a power supply.