In the range of Rs.15,000 to Rs. 20,000, you will only find Electric Water Purifiers. As the name suggests, these Water Purifiers need electricity to purify the water. Brands like AO Smith, Aquaguard, Havells, and Kent, among others offer a wide range of Electric Water Purifiers equipped with various water filtration technologies like RO, UV, UF, and TDS. Several Purifiers combine two or more of these technologies to filter all visible and invisible contaminants. To know more about different filtration techniques and their merits, you can refer to our Water Purifier Buying Guide.