Hindustan WP Pureit Ultima RO+UV Referesh-Enjoy good health with the black Hindustan Unilever Pureit Ultima Water Purifier. Its 6-stage purifying system,Senses water quality up to 5000 times a second, to showcase the purity level of your water.Fills 1 litre water bottle in just 30 seconds.Pre-Sediment Filter, Pre-RO Carbon Filter, Mini Filter,Reverse Osmosis Membrane, Micro Filtration Membrane/UV and Post-RO Carbon Filter.