Preserving the natural cycle
Infiltration of rainwater is an active flood protection and saves surface water drainage charges.
The GRAF Infiltration tunnel is intended primarily for use in private and rural areas. The system, comprising one or more tunnel modules and two end plates, can be added to as required. It is laid on one level.
Space-saving and cost-efficient. Specifically designed for use in private and rural areas.
The third generation of GRAF infiltration and attenuation system
Space-saving and good value. Specifically designed for use in private and rural areas.
The incomparable price-performance ratio. Infiltration tank for controlled draining of rainwater into the groundwater.