This advanced water purifier costs 3300 rupees.i have recently suggested it to one of my friends.its design is very practical which does not need electricity to purify water and also not need continuous water supply.it removes one crore virus in one litre of water as I have heard.its purification is multistage which adopts programmed germkill technology.it purifies the water to give the assurance of double protection.it is very simple to install and use.it repeats its purification cucle double due to microcharged membrane.it comes with six months warranty.its activated carbon trap removes harmful pesticides and undesirable odour.it is fully automatic which always contains nine litre of water.my friend is satisfied with it.