Roundup total weedkiller is a 5 litre ready to use weedkiller designed to kill weeds all around the garden it has a systemic action which will permeate the roots so that the weeds wont grow back any solution that lands on the soil is degraded by micro organisms to allow replanting this refill unit contains a ready to use formula that can be used with theroundup pump n go unitor in any garden pressure sprayerwarningfor use only as a home garden weedkiller toxic to aquatic life with long