7 Stage Reverse Osmosis System Made in USA. give you 100% pure drinking water The FILM TECH membrane operates by rejecting impurities and flushing them out to drain. This effectively eliminates 98% of all dissolved impurities, heavy metals, salts, viruses, bacteria, cysts, fluoride & chloride, chlorine, taste, odour, and chemicals leaving only purified water. Only pure a best tasting water from your own water supply