KOMO® is the Dutch quality mark for the construction industry. KOMO® certified products are managed by the Dutch Foundation for Quality in the Construction Industry (SBK).
In Europe and many countries outside Europe, the KOMO® standard is accepted for the voluminous drainage filters.
A KOMO® standard NEN 7090 has been implemented for PP450, PP700, PP1000 and Kokos glass fiber filters. The PP filter meets the new Dutch standard (our certificate number is K4228/04) with various pore sizes (from 350-800 µm) as well as other international standards.
Companies certified to manufacture their products under the KOMO® certificate are regularly inspected by KIWA for quality (KIWA is an independent, globally operating quality assurance organization).