ACO is certified in accordance with DIN EN ISO 9001:2000 and has manufacturer related product qualifications. In addition, in-house monitoring ensures compliance with the regulations for compliance with DIN EN 124 covering street casting and drainage technology products.

The new riser unit designs for class C 250 to D 400 Multitop storm water discharges feature long service lives, easy handling and simple maintenance. The frames and grates are made of cast- iron. The most important detail is the unbreakable maintenance-free double hinge which allows the grid to be folded out to around 115 degrees on either side or completely removed.