The company Otto GRAF GmbH was founded in 1962. We employ 750 people worldwide and our products are exported to over 80 countries.

As a plastics specialist, we are experts in all common manufacturing processes for plastic products.

Our DNA is to produce products “for a greener planet”. Thus, we focus on the following applications:

Rainwater harvesting:

GRAF rainwater harvesting tanks are both ecological and economical. They save large amounts of drinking water in homes and gardens. Available in flat or round design depending on installation depth, with capacities from 1.500 to 122.000 liters.

Rainwater Treatment:

Pollutants such as chemicals and microplastics coming from sealed surfaces like roads or parking areas do not disappear. They end up in the sea or groundwater. Our growing product range treats contaminated water so it can safely return to the environment.

Stormwater Management:

The climate is obviously changing. Increasing land sealing disrupts the natural water cycle and increases flood risk. GRAF infiltrations systems help restore balance.

Talking about heavy rainfall events, the GRAF Stormwater systems reduce the impact of heavy rainfall, relieve sewer networks by storing the water and release it in a slow and controlled manner.

Firefighting tanks:

In emergencies, sufficient firefighting water is not always available. GRAF firefighting water tanks ensure initial supply in dense urban areas or remote locations.

Wastewater:

GRAF offers SBR technology in plastic tanks up to 1000 PE to clean the wastewater. The company KLARO offers even larger systems in concrete. Non-electric wastewater treatment systems are available from BIOROCK. Both are part of the GRAF Group.