UltraTech Gravel Bag, Roll form, Green, 11?Äù X 250 Yards, Continuous Roll 2 Pack 9784 Capacity 200 C fold or 275 multi fold towels 70 gallon sump contains a 55 gallon 70 gallon sump contains a 55 gallon drum (not included) to hold washout until it can be disposed of properly The phenolic door is attached to the cabinet using field adjustable Heavy Duty Bags Provide Quick and Easy Sediment and Erosion Control from drain protection to erosion control at construction sitesMade of very high quality polymer material that is woven into shape eliminates the flaws and failures of sewn edgesHigh UV rating allows multi year life in sun and elements