India, May 9 -- Tap water may look clean, but it is often full of harmful impurities like bacteria, heavy metals, excess TDS, and chemical contaminants, all of which make it unsafe for daily consumption. With rising concerns around water quality in urban Indian cities, investing in a reliable RO water purifier has become more of a necessity than a luxury. Now, you might argue that stainless steel filters that use a combination of gravity and ceramic and carbon candles to strip water of some impurities can also be used for cleaning drinking water. But these 'water filters' are rarely as effective as the RO water purifiers that use advanced technologies to filter out pathogens and other impurities from water while retaining essential minera...