Rain Guardian

Rain Guardian is a line of precast stormwater pretreatment chambers designed to intercept sediment, debris, and floatables before they enter bioretention systems, rain gardens, or other green infrastructure. Available in models like the Turret and Bunker, these units combine a durable grate, drop-in filter, and sediment chamber to maximize pollutant capture while maintaining high flow-through capacity. Their compact footprint and modular design make them ideal for both new construction and retrofit applications, with installation taking just minutes. With over 75% sediment capture efficiency and up to 85% gross solids removal, Rain Guardian offers a cost-effective, low-maintenance solution for improving stormwater quality at the source. These systems align with low-impact development (LID) principles by treating runoff close to where it falls, reducing infrastructure strain and supporting sustainable site design.