I am from Noida, UP . I purchased Kent Ro Supreme model 1 year back its working very fine, very east to clean water storage tank. Before purchasing this product I was surveyed all the brands & finally I switched to Kent Ro Supreme. I am happy with my choice because I never faced any kind of infection by water related. Also I am happy with the services provided by Kent. This is the best product.that I have made such a worthy purchase.I will suggest you to go and get this for yourself as well.