Passive Filtration Equipment

Grattix boxes are an innovative and inexpensive stormwater treatment system, essentially mimicking the features of a rain garden in a compact, transportable box. Through specialized layers of soil, sand, and gravel, these boxes offer passive filtration of stormwater contaminants.

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The passive stacked media filtration system is a one-of-a-kind semi-passive filtration and adsorption treatment system. These systems are built to suit the project, and are designed to operate in two parts to allow for an options-based treatment train while providing easier system maintenance.

The system can be utilized for different applications and can be incorporated as water storage, media adsorption tanks, or up-flow treatment.