High storage volume

GRAF infiltration modules have three times the storage volume of a standard gravel infiltration ditch. One module therefore takes the place of around 1300 kg (1,4 tons) of gravel or a 50 m (164') drainage pipe. Since you don‘t have to excavate so much soil and enjoy great value for money compared with a standard gravel infiltration ditch, the GRAF modules save you hard-earned cash!

Service life of over 50 years

A durable product design ensures sustainability. The GRAF EcoBloc system and the Vario 800 flex shaft system is designed for a service life of over 50 years.

Easy to install

he modules are fitted simply, at speed and in various ways. They can be installed without heavy machinery – one EcoBloc maxx module weighs just 9 kg (19.8 lbs).

Up to 96 % reservoir volume

The GRAF EcoBloc maxx has a gross volume of 225 litres (59.4 US gal.) and a reservoir volume of 217 litres (57.3 US gal.). The EcoBloc variant maxx still offer a reservoir coefficient of 96 % despite their high load-bearing capacity.

Installation depth of up to 5 metres (16' 4.8")

Even under very heavy loads, GRAF EcoBloc maxx modules can be installed at a depth of up to 5 metres (16' 4.8"). This means that up to 13 layers are possible. Please consult GRAF when the installation depth is greater than 5 metres.

BBA Agrément Certificate Number 15/5200 for GRAF EcoBloc maxx 5 years warranty