ACO StormBrixx is a patented, modular plastic geocellular stormwater management system designed for underground detention, retention, and infiltration of surface water runoff in urban and commercial developments. Its brick‑bonded, stackable design delivers high structural strength and void ratios of approximately 95–97%, maximizing water storage capacity while minimizing excavation volume and site footprint. The open‑cell structure allows full inspection and maintenance access, making StormBrixx suitable for long‑term sustainable drainage applications beneath parking lots, roads, and building sites. It is manufactured in the United States.