The Graf Infiltration Tunnel has been mainly designed for the use in private and rural areas.
Suitable for Surface water or treated effluent from a sewage treatment plant with Building Control approval.
![](https://static.cmostores.com/uploads/products/3/l/graf-infiltration-tunnel-diagram-13168-3.jpg?auto=compress&w=800&h=800&_ga=2.106749635.115455294.1624624250-2015316496.1624624250)
- The system which consists of one or several tunnel modules and two end plates can be extended at will
- The laying is realized in one or more lines of the same level
- As the weight of one module is only 11 kilos, the handling of the Infiltration Tunnel is excellent
- The surface beyond the tunnels is lorry-bearing which offers versatile possibilities
Please note: this product does not have end caps, these must be bought separately.