Easy Pure 400 GPD water purifier is one of the commercial water purifiers. It is a popular water purifier which is capable of meeting the daily drinking water needs of 180 to 200 people in schools, colleges, offices or industries. The maximum production capacity of this purifier is 1,440 liters per day. It has a 11G pressure tank (40 liters) which will reserve pure water after filtration. It has five different filters. First three filters are 20’’ long and 2.5inc. width. Fourth stage is RO (Reverse Osmosis) system. In the fifth stage we used Mineral to level the pH level of water. So, be a user of Easy Pure purification system.