The Ultra-Drain Guard is engineered to filter storm water waste before it becomes a problem in the water system. As a storm drain filter,it removes contaminants like litter, sand, and oil from storm water flow. It is made from a geotextile fabric and it's easy installation makes it ideal for industrial facilities, construction sites,and parking lots where storm water runoff is likely to carry oil, eroded soil, debris, and fuel contaminants from cars., Oil & Sediment Model part number 9217 removes up to 0.87 gallons of hydrocarbons as well as dirt, sand and other contaminants.,