Space-saving and cost-efficient. Specifically designed for use in private and rural areas. 

Sizing form/
Tender file
Dimension drawing
Infiltration Tunnel
Infiltration Tunnel
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Infiltration tunnel 300

  • The Graf infiltration tunnel has been mainly designed for the use in private and rural areas
  • 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 
  • The infiltration tunnel can be loaded permanently up to 59kN/sqm and thus is also suitable for lorry-bearing
  • 5 years warranty

300 l

order no.QuantityLength (mm)Width (mm)Height (mm)add to notepad
Weight (kg)


  • End plate for infiltration tunnel 300, suitable for vehicle loading

    Set 2 units


  • Inspection end DN 200


  • Graf-Tex geotextile size 2.50 x 2.50 m

    for an EcoBloc Inspect flex, Rain Bloc and an infiltration tunnel


  • Graf-Tex geotextile

    Material sold by the metre, roll width 5 m


  • Deaeration end DN 100


  • Sedimentation filter shaft suitable for pedestrian loading


  • Infiltration filter shaft, vehicle loading


  • Universal Filter 3 external suitable for pedestrian loading


  • Universal Industrial Filter 3 external suitable for pedestrian loading


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