EcoBloc Maxx
The EcoBloc Maxx is a modular stormwater management system by GRAF, designed for rainwater infiltration, attenuation, or harvesting with high load-bearing capacity (truck-rated up to 40 t/HS‑20) and minimal excavation compared to traditional systems
EcoBloc maxx K
Connecting surfaces on EcoBloc maxx K end plates
| Volume | Length | Width | Height | Weight | Colour |
|---|---|---|---|---|---|
| 230 L | 805 mm | 805 mm | 355 mm | 10.3 kg | black |
EcoBloc maxx K base plate
Forms the foundation of the EcoBloc maxx K system
| Volume | Length | Width | Height | Weight | Colour |
|---|---|---|---|---|---|
| 25 l | 805 mm | 805 mm | 40 mm | 4.9 kg | black |
EcoBloc maxx K end plates
The outside surface of an EcoBloc maxx K system is sealed by end plates with contact surfaces DN 100 / DN 150 / DN 200 / DN 250
| Colour |
|---|
| black |
| Gross Volume | Net Volume | Storage Coefficient |
|---|---|---|
| 230 Liter | 221 Liter | 96% |
Load
| Without Traffic Load | Min. earth covering | 250 mm |
| Max. earth covering | 2750 mm 2 | |
| Max. installation depth | 5000 mm 3 | |
| Max. number of layers | 13 |
| Vehicle | Min. earth covering | 250 mm |
| Max. earth covering | 2750 mm 2 | |
| Max. installation depth | 5000 mm 3 | |
| Max. number of layers | 13 |
| Lorry 12/H-10/H-15 | Min. earth covering | 500 mm |
| Max. earth covering | 2750 mm 2 | |
| Max. installation depth | 5000 mm 3 | |
| Max. number of layers | 13 |
| Lorry 30 | Min. earth covering | 500 mm |
| Max. earth covering | 2750 mm 2 | |
| Max. installation depth | 5000 mm 3 | |
| Max. number of layers | 13 |
| Lorry 40/HS-20 | Min. earth covering | 500 mm |
| Max. earth covering | 2750 mm 2 | |
| Max. installation depth | 5000 mm 3 | |
| Max. number of layers | 13 |
| Lorry 60/HS-25 | Min. earth covering | 500 mm |
| Max. earth covering | 2750 mm 2 | |
| Max. installation depth | 5000 mm 3 | |
| Max. number of layers | 13 |
Connections
| DN 100, 150, 200, 250 | - |
| DN 300 | 1,2 |
| DN 400 | 1,2 |
| DN 500 | 2 |
Measurements
| Length & Width | 805 mm |
| Height | 355 mm |
| Weight | 10.3 kg |
1
Optionally available with Vario Shaft
2
Optionally available with adaptor plates
3
Higher earth covering possible on request
4
Deeper installation possible on request
Key Features
High Load Capacity Designed to support heavy traffic loads, suitable for installation under roads and parking areas. |
Modular Design Stackable and scalable structure allows flexible design and easy transport and installation. |
Large Storage Volume Offers high void ratio (~96%) for efficient water retention or infiltration. |
Durability & Longevity Made from recycled polypropylene, resistant to chemicals and extreme temperatures. |
Inspection & Maintenance Access Integrated inspection tunnels for easy monitoring and cleaning. |
MaterialComposition
Made from recycled polypropylene with mineral enhancements for durability, the Eco Bloc RWH units are produced in ISO-certified facilities and tested for 50-year performance.
| 01 |  | Reused Polypropylene | Made using high-strength recycled polypropylene (PP) |
| 02 |  | Quality Control Standards | Follows EU and ASTM standards for stormwater systems |
| 03 |  | ISO Certified Manufacturing | ISO 9001 & ISO 14001 Certified facilities |
| 04 |  | Durability & Performance | Engineered for 60+ years of lifespan under dynamic and static loads; resists corrosion, chemicals, and environmental stress. |
Test Certificates
Contact Us
Join us to
Shape a Water secure future
We'd love to hear from you. Fill out the form and our team will get back to you within 24–48 hours.
Prefer a Direct Approach?
+91 82200 02200
Contact@stonehands.in
