BWT AQA Drink is a product from BWT, which stands for Best Water Technology. BWT is a company that provides water treatment solutions to individuals and businesses worldwide. BWT AQA Drink is a home use water treatment system designed to improve the taste and quality of drinking water. The system uses BWT's patented Magnesium Mineralizer technology to remove impurities and add magnesium ions to the water. The result is purified water that is not only free from harmful contaminants, but also contains important minerals that benefit health.