Otto Graf GmbH
Plastic Products
Tel. +49 7641 589-0
Fax +49 7641 589-50
Carl-Zeiss-Straße 2-6
DE-79331 Teningen, Germany

EcoBloc Inspect flex

The third generation of GRAF infiltration and attenuation system

Sizing form/
Tender file
Dimension drawing
EcoBloc Inspect flex

  • BBA Agrément Certificate Number 15/5200 for GRAF EcoBloc Inspect flex
  • Universal use:For rainwater infiltration, retention or rainwater harvesting
  • Twice the volume per truck: To save space during transport, two EcoBloc Inspect flex modules are stacked one inside the other. This halves transport costs and CO2 emissions.
  • Easy to install: GRAF EcoBloc Inspect flex modules are easy to transport and install. The modular system structure requires few accessories.
  • Easy to inspect: The standard inspection channel allows the entire infiltration system to be effectively monitored. The ability of the EcoBloc Inspect system allow access by inspection cameras that are commonly found on the market. This has been confirmed, by several independent testing authorities.
  • Can be cleanded by high pressure jetting: GRAF EcoBloc Inspect system can be easily
    cleaned by high pressure jetting.
  • Highly flexible: Each EcoBloc Inspect flex module has a volume of 205 l, a area of 800
    x 800 mm and a height of 320 mm. The system size and loadbearing can be adjusted individually to suit requirements of traffic and of non-traffic area.
  • Lorry-bearing: The GRAF EcoBloc Inspect has a heavy-duty lorry-bearing capacity of 60 tons with a 800 mm earth covering.
  • Installation depth of up to 5 metres: Even under very heavy loads, GRAF EcoBloc Inspect system can be installed at a depth of up to 5 metres. This means that up to 14 layers are possible.
  • Connection up to DN 200: Large infiltration volumes require large pipe cross-sections. This isn‘t a problem for GRAF EcoBloc Inspect: it has DN 100, 150 and 200 connections on all sides. DN 100 connections are positioned eccentrically
    at the side for complete deaeration.
  • Designed for decades of use: A durable product design ensures sustainability.
    Built to offer double safety, the GRAF EcoBloc Inspect is designed for a service
    life of over 50 years.
  • High infiltration rate: The GRAF EcoBloc Inspect system is designed to have high rate of infiltration and barrierfree inspection.
  • 5 years warranty



205 l

order coefficient (%)Length (mm)Width (mm)Height (mm)add to enquiry
Weight (kg)


EcoBloc Inspect flex baseplate

Forms the foundation of the EcoBloc flex system. Volume 25L.


EcoBloc Inspect flex end plates

Set of 2 units. The front ends of an EcoBloc inspect flex system are sealed with end plates 
DN 100/150/200 contact surfaces


EcoBloc connectors

Set consisting of 10 units


Deaeration end DN 100


EcoBloc adapter plate

Connectors: Ø 300 mm open , Ø 400 mm and Ø 500 mm possible


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


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