The large Eliminator Reverse Osmosis System provides the purest home-filtered water available. Incoming water first passes through a one-micron sediment pre-filter that removes excess particulate matter that may cause the membrane to become plugged. The second stage is a five-micron carbon block pre-filter. This removes organics and chlorine from the feed water. Water finally feeds through dual reverse osmosis membranes and these high-rejection Thin Film Composite (TFC) membranes remove over 98% of most inorganic salts and all microorganisms in the water. This unit filters approximately 200 gallons per day and is particularly suited to hydroponics applications since it removes many contaminants and unwanted salts that can be harmful to plants.