Water Quality Association Gold Seal Certificate
Rainwater Treatment Systems
WATER QUALITY ASSOCIATION – ALTIN MÜHÜR
The quality of our products is certified by the world's most respected water authority. Since 1959, the Water Quality Association (WQA) Gold Seal program has been certifying drinking water systems based on rigorous standards and demanding tests. With our systems carrying this prestigious approval from WQA—the industry's most trusted independent certification body—we guarantee the purity of your water according to international standards.
FDA
Safety at FDA Standards: At Rainwater, we hold your health in the highest regard. The components used in our systems are selected in compliance with the standards of the FDA (Food and Drug Administration), an agency of the U.S. Department of Health that regulates a wide range of products from food to medical devices. Our adherence to FDA criteria—recognized as the world’s strictest health authority—is a testament to the fact that every single part in contact with your water is certified safe for your health.
CE
Assurance at European Standards: CE Certification: At Rainwater, the solutions we offer meet not only local but also international safety standards. Our products are in full compliance with the directives prepared under the 'New Approach Policy' adopted by the European Union in 1985. This certification attests that our systems have successfully passed all required conformity assessment processes and possess a reliable structure in accordance with European Union technical legislation.
DÜZEN NORWEST
International Accredited Analysis Assurance: Our partner laboratory has been accredited by the German Accreditation Body (DAP) since 2005, in accordance with DIN EN ISO/IEC 17025:2005 standards. With the competence to perform analyses across 212 different parameters—including water, wastewater, soil, and waste sludge—our facility certifies the safety of our water technologies with scientific data. In line with our principle of transparency, you can always access our accreditation certificates and detailed information at www.duzennorwest.com.tr.
TÜV CERT ISO 9001
International Management Discipline: The secret to our success lies in our management discipline. Rainwater meticulously applies the international ISO 9001 Quality Management System across all business processes. This standard serves as a global guarantee that every stage—from product selection to after-sales support—is strictly controlled, monitored, and continuously improved.
TÜV CERT ISO 14001
Nature-Conscious Management: ISO 14001: At Rainwater, we conduct all our operations in accordance with ISO 14001 standards, an international environmental management system. This certification is global proof that we don't just purify water; we also minimize our environmental footprint throughout our production and service processes, optimize waste management, and safeguard natural resources.