Recycled PP Stormwater Geocellular Module with 95.5% Void Ratio and 450KN/m2 Load Capacity for Underground Rainwater Harvesting Tank Systems

Our modern stormwater harvesting modular tanks are engineered from high-quality recycled polypropylene (PP), delivering an eco-friendly underground rain collection solution for residential, commercial and municipal stormwater management projects. Designed as a lightweight alternative to traditional concrete or plastic rainwater tanks, these interlocking modular units offer outstanding flexibility, robust load-bearing performance and significant environmental benefits for on-site rainwater capture and storage.

Boasting a high void ratio open-frame structure, these underground modular tanks maximize water storage capacity while maintaining structural stability. The modular design allows units to be connected horizontally and vertically, so installers can build custom-sized rain collection chambers tailored to site space, rainfall volume and project storage goals. They can be buried beneath lawns, permeable driveways, landscape beds and parking lots, leaving above-ground space fully available for other uses.

Made of recycled PP material, these stormwater harvesting tanks are corrosion-resistant, rot-proof and inert to most soil chemicals, ensuring decades of stable underground service life. The interlocking assembly system is simple and fast, cutting down labour costs and construction time without heavy lifting equipment. When wrapped with geotextile fabric, the system filters debris, prevents soil ingress and enables smooth water flow for storage, infiltration or controlled discharge.

Collected rainwater can be reused for landscape irrigation, plant watering, surface cleaning and other non-potable purposes, greatly reducing reliance on municipal tap water and lowering water expenses. This rain collection system also effectively cuts peak stormwater runoff, alleviates drainage system pressure and reduces local flooding risks, fully aligning with low-impact development and sustainable urban green infrastructure standards.

SGS certified for quality and performance assurance.

Ideal for landscape contractors, civil engineers, property developers and green building projects, these eco-friendly recycled PP modular tanks provide a cost-effective, adaptable modern stormwater harvesting option. Whether you are working on a private garden, community green space or commercial site, this underground rain collection system turns rainwater into a reusable resource and supports long-term water conservation goals.