Roundup total weedkiller is ready to use solution designed to kill weeds all around the garden. It has a systemic action which will permeate the roots so that the weeds won't grow back. This solution gets degrades in the soil to allow replanting. This refill unit with ready to use formula can be used with the Roundup Pump 'N' Go unit or in any garden pressure sprayer. Warning: For use only as a home garden weedkiller. Toxic to aquatic life with long-lasting effects. Contains 7.2g/l glyphosate acid IPA salt of glyphosate in a ready to use solution. Always read the label. Keep out of reach of children.