Ultratech 9227 ultra-drain guard, trash and debris model, 48′ x 36in x 18in the ultra-drain guard is engineered to filter stormwater waste before it becomes a problem in the water system. as a storm drain filter, it removes contaminants like litter, sand and oil from stormwater flow. its geotextile fabric and easy installation make it ideal for industrial facilities, construction sites and parking lots where stormwater runoff is likely to carry oil, eroded soil, debris and fuel contaminants from cars. to install simply lift catch basin grating, insert drain guard into opening and replace the grating, making sure to pinch fabric to hold the unit in place. It exceeds 80% sediment removal efficiency. the trash and debris model is designed specifically to catch larger items and floatables like leaves, cigarette butts and paper goods. helps comply with npdes, spcc and tmdl. It is an ecosmart product.