S-300

This section of the directory lists low pressure reverse osmosis drinking water systems which have been certified in accordance with "Voluntary Industry Standard For Point-Of-Use Low Pressure Reverse Osmosis Drinking Water Systems," S-300, and is published periodically by the Water Quality Association (WQA), as a service to the industry and consumers. The WQA is a not-for-profit international association of manufacturers, distributors, and dealers of water treatment systems for household, commercial, and industrial applications. This on-line directory is continuously updated to identify those water treatment equipment products that have been tested and passed stringent industry standards to become certified by the Water Quality Association.

Certification means that a production line reverse osmosis system was tested at the Water Quality Association laboratory, or any of the other testing laboratories recognized by the Water Quality Association, and was found to have met the standards for reduction of specific contaminants. In addition, the materials and components used in these reverse osmosis systems must meet the rigorous safety and structural integrity requirements set by industry Standard WQA S-300.