A No. Reverse Osmosis systems are a multi filter system requiring electricity to "push" untreated water through a membrane to remove all bacteria, viruses, heavy metals, AND essential minerals. Leaves water without taste. More expensive RO systems have a final filter to try and add back some of the essential minerals that are lost in the first stage. The Berkey system relies on gravity to push the water through filters which also removes bactreia, viruses and heavy metals, but does not remove most of the essential minerals... which is a good thing. (The Berkey is similar to a lot of the leading backpacking filters on the market.) I'm a chiropractor and acupuncturist and am daily having to recommend supplements of essential minerals for patients as this is a common problem of not getting enough. I can't help but wonder if this is partially due in part to America's trend to drink bottled and RO water. Berkey can be used with tap water, rain water, as well as yucky pond water and does not require electricity. Both types of systems provide clean safe water. Hope this helps with your decision.