The commercial ro systems come in standard models. These systems can be customized to add multimedia filters, activated carbon filters, water softeners, anti-scalant dosing systems and uv sterilizers. These systems are used to purify and remove salt and other impurities. These are also capable of rejecting bacteria. They are the most durable RO systems with great value in quality, convenience and price. They come in different capacities from 125l/hr to 3000 l/hr.