https://www.brondell.com/water-filtration/circle-reverse-osmosis-water-filtration-system/ Brondell’s Circle Reverse Osmosis Water Filtration System utilizes patented new technology to make it up to 10 times more efficient than current conventional RO systems. Additionally, the Circle RO Water Filter eliminates any need for electricity by integrating the tank and filters. This all-in-one configuration makes the Circle easy to install and maintain.
Reverse osmosis (RO) systems today are bulky, difficult to install, and many require electricity and pumps to operate. Most importantly, conventional RO systems are extremely inefficient, wasting up to 24 gallons of water for every gallon of drinkable water!