WISY AG

We are a manufacturer of all products for modern rainwater Harvesting. Over 30 years of experience with rainwater, Co-founder of the Association for use of Service- and rainwater (fbr), member of the DIN standards committee. Our portfolio includes Rainwater filters, Vortex Filters, floating intake filters, downpipe filters, pumps and rainwater units, break tanks, cisterns, rain barrels, system separators, float switches and much more ...