With its removable and replaceable filtering cartridges, the Ultra-Storm Guard HDC captures microplastics (“nurdles”) that are between 1.0mm (1,000 microns) and 5.0mm (5,000 microns) before they enter our waterways where marine life and wildlife ingest them, which is oftentimes fatal. The cartridges can be swapped out depending on the target pollutants, which makes this a versatile plastic pellet containment solution. The HDC also captures larger items and floatables, like leaves, cigarette butts, paper goods, and other debris.