UltraTech 9724-OS Oil and Sediment Dewatering Bag, 18 Cubic Feet Capacity, 6' Length x 6' Width Ultra-dewatering bag Retains both oil and sediment Accommodates up to 4-inches discharge hose Helps comply with NPDES, 40 CFR 122.26 (1999) when used as best management practice in storm water pollution prevention plans Measures 6-inches-feet by 6-inches feet