http://www.ozchess2006.com/News/reverse-osmosis-water-filtration-system/ A reverse osmosis water filtration system is a filtration method that allows water to pass through a material that has very small openings. This material or membrane filters through clean water and traps larger particles and impurities. This method is used by many to create fresh clean water on their . Sun, 28 Feb 2010 07:19:48 CST en