Gallon, Ready To Use, Weed Beater Ultra, Power Sprayer, Effective On Over 200 Hard To Kill Weeds, Right To The Roots, Visible Results In Just 24 Hours, Rain Fast Once Dry, Reseed In Just 2 Weeks, Superior Cool Weather Performance Down To 45 Degrees Fahrenheit, Extends Application Window, Contains See Spray Non-Staining Blue Marker Dye, Contains Carfentrazone .22%.