Ecobloc Smart Stormwater Block

The GRAF Ecobloc Smart stormwater infiltration and retention/detention modules have three times the storage volume of standard drainage gravel. One module can replace around 1300 kg (1.4 tons) of gravel or a 50 m (164′) of 100 mm (4″) drainage pipe. That means there is no need for expensive soil and gravel excavation. The GRAF modules save you money! The GRAF EcoBloc’s efficient German design provides a service life of over 50 years with maximum structural capacity and maximum space efficiency for shipping and storage on-site. They are quick and easy to install and can’t be matched by any other system. EcoBloc has a wide variety of configurations and burial depths. The EcoBloc Smart, Smart Plus and Smart Ultra still offer a reservoir coefficient of 96%, 95% and 95% respectively.  The Smart and Smart Plus are suitable for HGV loading up to HS-25 as per AASHTO standards.  The EcoBloc Ultra is suitable for high load areas over HS-25 loading or installation with deep earth covering.

GRAF Universal Industrial Filter 3

Designed for roof areas up to 13,000 sqft (8″) and 8000 sqft (6″) the Universal 3 filter package is ideal for your next system. Variable installation from 31″ – 48″ allows for flexible installation and integration with standard SDR35 piping (bell end) allows for easy connection to existing systems. The included PVC Gasketed Drain Pipe connects directly to inlets/outlets or through the use of a rubber coupler. This system is available standard with pedestrian loading. Vehicle loading is available as an extra. The Universal 3 Industrial filter is an economical, commercial filter chamber for stormwater filtration and infiltration, as well as rainwater collection.

• Continuously variable installation depth of 703 – 1,270 mm (26.7-50.0″) using the telescopic dome shaft
• Maximum roof surface area of 750 m² with connections DN 150 and 1,200 m² with DN 200
• Only 229 mm height offset between the inlet and the outlet

GRAF Optimax Industrial Filter External

This industrial version of the popular Optimax filter comes with many improvements, including a maximum roof area of 16,000 sqft (using 6″ connections) or 8000 sqft (using 4″ connections) and an extended variable installation depth from 31″ – 48″. The chamber connections are compatible with bell ends of standard SDR35 piping, available with either a durable green lid capable of person loading, or a cast-iron lid capable of vehicle loading. This filter is commonly paired with our Fibreglass Rainwater Collection Tanks in commercial applications. This filter combines convenient low-maintenance technologies with the industry’s best material and build quality to provide the best external rainwater filter for your next project.

• Smooth installation depths from 733 – 1,320 mm (28.9-51.9″) using the telescopic dome shaft
• Maximum roof surface of 750 m² with connections DN 150 and 1,500 m² with DN 200
• Only 224 mm height offset between the inlet and outlet