I have bought 1 year back with AMC.It worked well for a few months, then filters replaced as per AMC.After a few days it stopped, again service people came and rectified.After every couple of months it stopped working.Service people rectified every time.Then they told I need to instal an online pump to increase flow, as my rooftop water tank pressure is less.But in every house rooftop tanks are a normal system.Aquaguard this model has some fault as it can not deliver in a single storied building where rooftop tank and aquaguard head difference is less than 10 feet.So I had to pay for an extra pump which cost me rs 2400.This was not told during purchase.So Aquaguard forced me to spend extra money to make the filter working.Also when the circuit damaged after 1 year, they took 6 days to replace in spite of AMC.I had to pay around rs 4000 for a 3 year AMC.This recurring costs were also not told during purchases.It is not a good business procedure, and within 1 year of purchase I have faced so much problem with this model.So please dont buy this model as there are many untold stories of aquaguard which are not told during purchase and are kept hidden willfully and after spending rs 14000 when one faces problem and gets stuck then they unfold the hidden stories which are very annoying and makes successive and repetitive costs.