Curb Inlet Guard, Removes Debris, Hydrocarbons, Oil, Sediment, Trash, Flow Capacity 500 gpm, Length 48 in, Width 30 in, Height 21 in, Opening Size 30 in, For Use With Storm Drains, Downspouts, Gullies, Ditches, Oil Capacity Not Applicable, Material Non-Woven, Polypropylene Geotextile