UltraTech Ultra-Drain Guard oil and sediment model. Keep sediment and other pollutants from entering the water system with ultra drain guard catch basin inserts. Ultra-Drain Guards remove waste from stormwater before it can become a problem in the water system. Exceeds 80 percent sediment removal efficiency. Helps comply with NPDES, 40 CFR 122.26 (1999) when used as best management practice in storm water pollution prevention plans. Industrial Facilities - keep oil and other contaminants from entering storm drains. Construction Sites - capture eroded soil and wind-blown debris. Parking Lots, "Drive-Up" retail facilities - selected geotextiles collect oil, fuel and other contaminants that drip from cars. Performance: oil: up to 0.87 gallons (3.5 liters), sediment: up to 40 pounds (18 kilograms). The total water flow rate through the insert in new condition is in excess of 500 gpm. The bypass rate is approximately 700 gpm. Measures 48-inches length by 36-inches width by 18-inches height.