try to get the model with them which is 250- stage purifying model :swear:
on a serious note its not even necessary to have more than general 6 stage filtration process , even UV stage is not needed if i am correct , only a mineral catridge after RO membrane should be sufficient ................they want your extra money for 0 extra benefit in my opinion , so get nomal model only wih minral cartridge from whirlpool , minerella 90 , if you get it for 10 k or below on
snapdeal