Graf Infiltration Tunnels

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.

• 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.