Load-bearing Underground Modular Stormwater Geocellular Module for Rainwater Harvesting Module Projects
450KN/m2 Load Capacity Stormwater Geocellular Module
,95.5% Void Ratio Rainwater Harvesting Module
,Underground Installation Stormwater Geocellular Module
As a professional manufacturer, our load-bearing underground rainwater harvesting modules are engineered for exceptional durability and consistent, reliable quality. They are specially designed for installation beneath parking lots, green belts and other heavy-load landscape zones.

Fabricated from high-strength modified recycled polypropylene, each module adopts an optimized reinforced pillar and grid structure to deliver outstanding compressive performance. It can steadily bear long-term soil pressure, backfill load and dynamic vehicle load from parking areas. The raw material is chemically inert, resistant to soil acid and alkali corrosion, microbial decay and plant root piercing. Unlike concrete tanks that are prone to cracking and leaking, our modules will not become brittle or deform under complex underground environments, maintaining stable structural performance for decades.


Precision injection molding ensures consistent size and a tight interlocking fit. The built-in snap connectors lock modules firmly together horizontally and vertically, forming an integrated, stable storage matrix. This effectively prevents displacement, separation or collapse during backfilling and long-term operation. Every batch undergoes strict load testing, dimensional inspection and raw material sampling before shipment to guarantee stable quality and eliminate hidden engineering risks.
This robust rainwater storage system is perfectly suited for parking lots, permeable driveways, urban green belts, roadside greening, community lawns and park landscape zones. The high-void open structure ensures smooth water circulation. When wrapped with geotextile fabric, it blocks sediment and avoids clogging, supporting long-term stormwater retention, infiltration or rainwater reuse for irrigation. It helps reduce peak runoff, relieve urban drainage pressure and meet LID stormwater control requirements.
We provide full-cycle technical support and after-sales service. Our engineering team offers pre-project layout design, installation guidance and remote technical follow-up. For qualified quality issues, we provide timely solutions to safeguard your project. For civil contractors, landscape engineers and property developers, our heavy-duty rainwater harvesting modules are a trustworthy, low-maintenance stormwater solution for parking and green belt projects.
| Product Name | Rainwater Harvesting System |
|---|---|
| Material | Polypropylene |
| Color | Black and Blue |
| Size | 1000 × 500 × 500 mm |
| Weight | 11 kg |
| Void Ratio | 95% |
| Water Storage | 900 L / m³ |
| Bearing | Color | Length | Width | Height | Working Life |
|---|---|---|---|---|---|
| 35T | Black | 1000 mm | 500 mm | 500 mm | 20 years |
| 40T | Black | 1000 mm | 500 mm | 500 mm | 20 years |
| 60T | Blue | 1000 mm | 500 mm | 500 mm | 20 years |
SGS certified.




Q: Do you have stock for samples?
A: Yes, you can get available samples from our stock with a small, reasonable charge.
Q: What is your delivery time?
A: 7–14 days after receiving the advance deposit.
Q: Are you a manufacturer or a trader?
A: We are the manufacturer of rainwater harvesting modules.
Q: Can we visit your factory?
A: You are warmly welcome. Once we have your schedule, we will arrange a professional sales team to follow up on your case.
Q: When can I get the price?
A: We usually quote within 24 hours after receiving your clear inquiry.
Q: What are the characteristics of the PP module?
A: Key advantages include:
- Flexible product design
- Long service life
- Convenient construction and short construction period
- Fast transportation
- Strong carrying capacity
- Environmental protection
- Low cost