Provides the purest homefiltered water available, Includes two prefilters: the first sediment prefilter removes sediment rust dirt and other solid debris; the second carbon prefilter removes chlorine odor and protects the RO membrane which removes dissolved metals and salts plus other harmful contaminants, A storage tank holds the RO processed high quality water until needed in which case the water will then pass through the final postfilter which removes tastes odors and organic chemicals, Made in Taiwan, Tank is approx, 3 gallons, Works off of supply-line pressure no electricity is required, The pressure in the tank must be adjusted accordingly depending on the supply-line water pressure SKU: BFKTROSYS