Reverse Osmosis Based Water Purifier removes dissolved Impurities like rust, heavy metals, salts, chemical and virus, bacteria. The Water Purifier has individual sand and carbon filter with manual backwash system. The Water Purifier operates on a power supply rate of 230 V AC, at a frequency rate of 50Hz. The Water Purifier performs fully automatic operation with auto on and off. The Water Purifier has high pressure switch to prevent against high pressure accident and low pressure switch to prevent against dry run at time of empty raw water tank. The Water Purifier is designed with mild steel powder coated plant structure and has electric control penal with all safety provisions. Reverse Osmosis Based Water Purifier is easy to operate and comes with inbuilt raw water feed pump.