Reverse Osmosis is the most effective method of totally purifying water and the technology is now well-proven. Traditional RO systems are complicated to operate and maintain, though as a result of creative thinking and extensive research Pentair Water, part of one of the world’s largest corporations, has developed the Modular PRO system that provides excellent pure water quality with simple operation and can be scaled to provide a range of system sizes. These RO units are incorporated as the core component of the innovative range of PRO treatment units, all of which offer the following features: –