The pureit advanced 23 litre is the purifier which I bought 4 years ago.
Now it cost me around 3000 rupees for thsi purifier purchase.
Now thsi purifier has a water capacity of 23 liters which lasts 2 days for two persons.
Now the concept of this purifier is garavity purification that means there is no requirement of electricity to pure this.it goes through sophesticated pathway and it even clenses iron from the water.complany claims to kill 1 crore germs through this purifier
The idea is you have to pour water in the pouring basin and thenyou have to wait for hours and water dripples slowly to become purified.
Now initilly you are very sceptical as it comes disassembled and you need to assemble it very carefully and it was a tideous job.
But by seeing user manual I did this efficiently.
You need to change the germ kit the core carbon filter in 2-3 months and that costs 900 ruppes.
Need to cleam thoughroughly after dismantleing and then put mew cartridge with utmost care or you will end up breaking parts.
It has a red indicator which indicates the remaining life of the purifier and once the cartridge is fully used the water passage is blocked so you dont drink unfit water.
Overall for low budget and for no electricity usage I can reccomend it.
But ith leaks sometimes through tap and the joints.
This is not good.I use tape to block this