I had purchased Kent Pearl water purifier 3years back. the purifier has UV+UF+RO and TDS controller. The insallation was done within 24hrs of order given on telephonic chat. The purifier is working smoothly n the service is very good. I m calling the service person once in 4 months an maintaining the purifier. once in a year we have to change the water purifying unit and the maintenance is pocket friendly. It all depends on us how we maintain the product for our daily use. I am really happy with my Kent Pearl and thanks for Mr. Muruli who has given me a good service.