DOOM is an EPA registered solvent base weed killer. It is a combination of 2,4-D and Bromacil. This combination insures rapid top kill of all weeds and will also prevent future growth up to one year. Upside-down valve allows ease of use. Can sprays upside-down only. An excellent product for use on johnson grass, crabgrass, foxtail, barnyard grass, dandelions, weeds, lambs quarter, and broomsedge. A great product for industrial plants, loading docks, parking lots, fence rows, storage yards, tank farms, railroad sidings, homes and buildings. Non-selective spot weed killer Rapid top kill, systemic herbicide Special valve allows product to be sprayed upside down 12 - 20 oz cans/case, 16.5 oz net weight