Roundup 5003810 ready to use pump ‘n go refill 1.25 gallon is for the 1.33 gallon sprayer. hard on weeds and effective in cool and cloudy conditions as well as warm and sunny. no mixing or measuring. use in and around vegetable gardens, flower beds, tree rings and mulched beds. use in cracks in driveways, walkways and patios. kills to the root. guaranteed. fast, visible results in six hours and rainproof in ten minutes. active ingredients:2-percent glyphosate, 2-percent pelargonic acid and related fatty acids.